|Full name||Mauricio Ugartemendia Lauzirika|
|Date of birth||26 July 1934|
|Place of birth||Gernika, Spain|
|* Senior club appearances and goals counted for the domestic league only.
During his spell with the Lions, Mauri appeared in 293 games across all competitions, scoring 72 goals. In the top flight he also represented CE Sabadell FC, during the second part of the 1965–66 campaign.
- Athletic Bilbao