Takumi Akiyama was removed from a Rakuten game on March 3 after he developed a cramp in his left hamstring while running the bases in the eighth inning.
Source: Sanspo 4/4/2016
[UPDATE 4/6 @ 2:30pm]
Akiyama did not play in the Nippon Ham game on April 5 because of tightness in his left hamstring.
Source: Sanspo 4/6/2016