For the third year in a row, an important Twins personality died just before the beginning of the season. In 2005, long-time stadium announcer Bob Casey fell to heart failure. In 2006, Hall of Fame center fielder Kirby Puckett died from a massive bilateral stroke brought on by hypertension. In 2007, Herb Carneal, the team's radio play-by-play announcer for 45 years, died from heart failure on April 1, the day before Opening Day. The Twins announced that they would dedicate the 2007 season to Carneal's memory.
The Twins' representatives to the All-Star Game were Morneau, Hunter, and Santana. Reliever Pat Neshek was chosen to be one of five players in the final vote for an All-Star player. However, this spot went to Boston Red Sox pitcher Hideki Okajima, despite a campaign by Twins fans and national sports blogs to "Vote For Pat".
The collapse of the I-35W Mississippi River bridge occurred prior to the August 1, 2007 home game against the Kansas City Royals at the Metrodome. Public safety officials told the team that canceling the game could hamper rescue and recovery efforts, since a cancellation would send up to 25,000 people back into traffic just blocks from the collapsed bridge (I-35W runs behind the Metrodome). Before the game, a moment of silence was held for the victims of the collapse. The team rescheduled their August 2 game against the Royals to the afternoon of August 31. Traditional groundbreaking ceremonies for the team's forthcoming stadium (also located in downtown Minneapolis) had been scheduled to take place after the game, but were postponed to August 30.
While the 2006 team was known for the "piranhas"—gritty hitters lacking power but possessing speed and guile—the 2007 team saw the continued the development of power hitters such as 2006 league MVP Justin Morneau, Torii Hunter, and Jason Kubel. After the Twins swept a July 6 doubleheader with the Chicago White Sox by a combined score of 32-14, White Sox manager Ozzie Guillén, the man who coined the term "piranhas" in 2006, stated: "They're not piranhas no more. They're a shark attack now." In the second game of that doubleheader, Morneau became the first Twin to hit three home runs in a game since Tony Oliva against the Kansas City Royals on July 3, 1973. The Twins scored the most runs by one team in a doubleheader since the Boston Red Sox totaled 35 in a sweep of the Philadelphia Athletics on July 4, 1939.Nick Punto, as of August 22, 2007 has the lowest batting average among qualified batters in the American League, at .201.
The Twins entered the season with a problem in the starting rotation after Twins staple Brad Radke retired and Francisco Liriano had Tommy John surgery. The Twins signed Ramón Ortiz and Sidney Ponson to start. Ponson was released in May and was replaced by Scott Baker, Ramón Ortiz was moved to the bullpen shortly after and replaced in the rotation by Kevin Slowey. However, Slowey was sent to the minors in early July, replaced by Matt Garza. Ramón Ortiz was traded in August to the Colorado Rockies. On August 31, Baker took a perfect game into the ninth inning against the Kansas City Royals, before giving up a leadoff walk to catcher John Buck. His no-hitter also ended when he gave up a 1-out single to Mike Sweeney in the 9th inning. The game was won by the Twins 5-0.
After their great amount of success in 2006, in which they came from behind to win the AL Central, the Twins wanted to be sure to lock up their 3-4-5 hitters (Joe Mauer, Michael Cuddyer, and Justin Morneau) to multi-year deals. The Twins were able to sign Mauer to a four-year deal worth $33 million, but Morneau and Cuddyer only agreed to sign one-year contracts, worth $4.5 million and $3.575 million respectively.
April 9 - Placed Jeff Cirillo (medial meniscus tear in left knee) on the 15-day disabled list, retroactive to April 9; Placed Rondell White (strained right calf) on the 15-day disabled list, retroactive to April 5; Recalled Alexi Casilla from Triple-A Rochester.
May 22 - Placed Glen Perkins on the 15-day disabled list with a mild muscle strain in the back of his left shoulder; Purchased the contract of Carmen Cali from Triple-A Rochester.
May 24 - Placed Dennys Reyes on the 15-day disabled list, retroactive to May 21, with inflammation in his left shoulder; Purchased the contract of Jason Miller from Triple-A Rochester and transferred Alejandro Machado from the 15-day to the 60-day disabled list.