SEATTLE — Ken Griffey Jr. stands to earn nearly $4 million from the Seattle Mariners next season.

According to contract figures obtained by The Associated Press on Monday, Griffey’s deal signed this month to return to his original team for one more season as a 40-year-old calls for a $2.35 million base salary for 2010.

Baseball’s active home run leader would earn $3.9 million if he again has at least 400 plate appearances, Seattle has an increased home attendance of 2.5 million fans and Griffey again does not go on the disabled list while remaining on the roster for the entire season.

Griffey earned $3.15 million in 2009. That included $2 million in base pay plus $1.15 million of a potential $3 million in bonuses.