|Full name||Gary MacKenzie|
|Date of birth||15 October 1985|
|Place of birth||Lanark, Scotland|
|Height||1.93 m (6 ft 4 in)|
|2010–2013||Milton Keynes Dons||63||(3)|
|2013||→ Blackpool (loan)||12||(2)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 17:07, 20 Feb 2014 (UTC).
† Appearances (Goals).
MacKenzie started his career as a youth player at Rangers. He has made two appearances for the first team (at the end of the 2003–04 season), against Motherwell and Dunfermline, respectively. Since leaving Rangers, MacKenzie was quoted as saying: "I would have loved to have got my chance when I was with Rangers, but it never happened for me. They gave some young boys their chance tonight and maybe part of that is down to what’s happening at the club right now. You don’t want to see any club struggling, especially not one you used to play for. These guys are getting a chance and maybe things would have been different if I stayed."
He joined Dundee on a free transfer in June 2006 under the management of Alex Rae and signed a two-year contract. He made his debut, on the opening game of the season, in a 1-0 loss against Partick Thistle. Later in the season, MacKenzie would be often used in first team ins and out in his first season.
In 2007-08 season, MacKenzie playing time would increase, making thirty-three appearance. He scored his first goal, in a 3-0 win over Stirling Albion, with a header on 12 April 2008. The 2008-09 season was overshadowed for MacKenzie as he suffered injuries, like toe and many more. In addition, MacKenzie have discipline issue, earning two red cards against Ross County on 28 March 2009 and Livingston on 28 April 2009.; which MacKenzie made nineteen appearance.
In 2009-10 season, MacKenzie had average season with the club, making twenty-five appearance. He scored his second goal in his Dundee's career, in a 2-1 win over Raith Rovers on 24 October 2009. However, several days later, in the quarter final of Scottish League Cup, MacKenzie scored an own-goal against his former club, Rangers, to send the club out of the  A month later, on 3 January 2010, MacKenzie sent-off, in a 1-0 loss against Airdrie United, which he branded referee Colin Brown ‘a joke’ after a challenge on goalkeeper Stephen Robertson. In second half of the season, MacKenzie suffered an injury in an early minutes, but managed to recover quick despite doctors advice. He made his last appearance for the club against Ross County before suffering a groin injury, which resulting him seeing two specialists.
He was released by the club on 4 May 2010 along with eight other players.
Milton Keynes Dons
MacKenzie missed nine fixtures, due to injuries and made his debut for the club, on 21 September 2010, in the third round of League Cup, in a 3-1 loss against Birmingham City after coming on as a half-time substitute. Four days later, he made his league debut, in a 2-1 loss against Peterborough United. On 30 October 2010, MacKenzie received a straight red card after a professional foul, as MK Dons lost 4-2 against Tranmere Rovers. Then on 5 February 2011, MacKenzie sent off again after a second bookable offence, in a 2-2 draw against Sheffield Wednesday. He scored the winning goal against local rivals Peterborough on 21 March 2011. He scored his second goal in three games for the Dons with a header away to play-off rivals Southampton.
In 2011-12 season, MacKenzie made twenty-appearance, but soon would be often used in first team ins and out. On 17 September 2011, he made assist Dean Lewington before being sent-off for stamping on Alan Lee, in a 1-1 draw against Huddersfield Town. After the match, Manager Karl Robinson criticise MacKenzie as "disgrace", believing he desrve tp be punish. In the first match of 2012, MacKenzie scored his first 2012 goal, in a 1-0 win over Colchester United, but his goal against Colchester United was later recorded as an own goal by the Football League, eight days later. Several weeks later on 24 January 2012, he scored an own-goal, in a 4-2 loss against Stevenage; then scored another own-goal, in the next game, in a 1-1 draw against Sheffield Wednesday. On 14 February 2012, MacKenzie, once again, sent-off for giving away the penalty and then head-butted Yann Kermorgant. After the match, Robinson was disappointed with his action, though he was sarcastically proud of him "in a weird way for coming out and accepting his punishment." MacKenzine, himself, apologised to team-mates and my manager and the fans and regretted his action, something that it's wrong. After serving his four match ban, MacKenzie was since left out of the first team squad throughout March. He made his return on 7 April 2012, in a 1-1 draw against Preston North End.
In 2012-13 season was overshadowed for MacKenzie when he undergo a hip surgery, which ruled him out for three months. In late-December, he made a return on the bench, in a 3-2 loss against Coventry City. After making two appearance since his return, MacKenzie soon suffered a knock in a FA Cup fourth match against Queens Park Rangers after playing 20 minutes in the first half, which Milton Keynes Dons win 1-0 to send the club through the next round. After missing two games, MacKenzie made his return from injury. At the end of the 2012-13 season, the club activate it options to keep MacKenzie and was signed on 16 May 2013.
On 1 March 2013, MacKenzie signed on loan for Blackpool until the end of the season. The emergency loan has a recall clause in it, in case the Dons get short on player numbers throughout the rest of the 2012–13 season. Chairman Pete Winkelman says his decision to loan him was the right decision.
The next day after signing for the club, MacKenzie made his debut for the club, in a 0-0 draw against Bristol City. Seven days later, on 9 March 2013, MacKenzie scored a winning goal, in a 2-1 win over Watford. Then, on 29 March 2013, MacKenzie scored his second goal for the club, in a 1-1 draw against Blackburn Rovers.
On 5 July 2013, MacKenzie signed for Blackpool on a permanent deal from Milton Keynes Dons for an undisclosed fee.
- "Professional retain list & free transfers 2012/13" (PDF). The Football League. 18 May 2013. p. 38. Retrieved 8 September 2013.
- "Gaz leak". The Scottish Sun. 28 October 2009. Retrieved 8 July 2013.
- "Griffin & MacKenzie sign at Dens". BBC Sport. 13 June 2006. Retrieved 8 July 2013.
- "Dundee 3-0 Stirling Albion". BBC Sport. 12 April 2008. Retrieved 8 July 2013.
- "Dundee hit by injury crisis". Daily Record. 29 September 2008. Retrieved 8 July 2013.
- "Ross County 1-1 Dundee". BBC Sport. 28 March 2009. Retrieved 8 July 2013.
- "Livingston 0-1 Dundee". BBC Sport. 28 April 2009. Retrieved 8 July 2013.
- "Spotlight on Division One". The Scottish Sun. 25 October 2009. Retrieved 8 July 2013.
- "Spotlight on Division One". The Scottish Sun. 4 January 2010. Retrieved 8 July 2013.
- "I had to sign myself out of the hospital to tell Jocky ‘I’m sorry’". The Scottish Sun. 22 March 2010. Retrieved 8 July 2013.
- "Gaz may be Dun at Dens". The Scottish Sun. 14 April 2010. Retrieved 8 July 2013.
- "Dundee aim to axe 16 from squad". BBC Sport. 4 May 2010. Retrieved 4 May 2010.
- "Dons bring in Mackenzie". Sky Sports. 14 May 2010. Retrieved 8 July 2013.
- "MacKenzie off to MK". Sky Sports. 11 March 2010. Retrieved 8 July 2013.
- "MacKenzie buoyed by debut". Sky Sports. 23 September 2010. Retrieved 8 July 2013.
- "Tranmere Rovers 4 - 2 Milton Keynes Dons". BBC Sport. 30. Retrieved 8 July 2013.
- "Milton Keynes Dons 1 - 1 Huddersfield Town". BBC Sport. 17 September 2011. Retrieved 8 July 2013.
- "MK Dons boss brands MacKenzie flashpoint a 'disgrace'". BBC Sport. 19 September 2011. Retrieved 8 July 2013.
- "Milton Keynes Dons 1-0 Colchester United". BBC Sport. 2 January 2012. Retrieved 8 July 2013.
- "Dons winner deemed own goal". Sky Sports. 10 January 2012. Retrieved 8 July 2013.
- "Boss: MacKenzie will learn". Sky Sports. 15 February 2012. Retrieved 8 July 2013.
- "Mackenzie regrets seeing red". Sky Sports. 15 February 2012. Retrieved 8 July 2013.
- "Mackenzie faces lengthy lay-off". Sky Sports. 10 October 2012. Retrieved 8 July 2013.
- "Dons close in on Ryan Harley signing". Milton Keynes Citizen. 29 December 2012. Retrieved 8 July 2013.
- "Yeovil v MK Dons preview". Sky Sports. 29 January 2011. Retrieved 8 July 2013.
- "Triple injury boost for Dons". Sky Sports. 5 February 2013. Retrieved 8 July 2013.
- "Dons move to keep Bowditch and Williams". Milton Keynes Citizen. 3 May 2013. Retrieved 8 July 2013.
- "Doumbe leaves MK Dons". Milton Keynes Citizen. 16 May 2013. Retrieved 8 July 2013.
- "Football: MK Dons defender MacKenzie makes shock loan move to Blackpool". MK News. 1 March 2013.
- "MacKenzie loan is ‘beneficial to Dons’ says Winkelman". Milton Keynes Citizen. 4 March 2013. Retrieved 8 July 2013.
- "Championship: Blackpool stun high-flying Watford 2-1 at Vicarage Road on Saturday". Sky Sports. 12 March 2013. Retrieved 8 July 2013.
- "Paul Ince felt Blackpool's 1-1 draw with Blackburn was a fair result". Sky Sports. 30 March 2013. Retrieved 8 July 2013.
- "Defender Back With The Seasiders". Blackpool F.C. 5 July 2013. Retrieved 5 July 2013.
- Harrow, Andy (6 September 2012). "Why maturing Gary MacKenzie can become a regular in Scotland squads". STV (STV Group). Retrieved 16 September 2012.