Marcos Mateo pitched in a Ni-gun rehab game against Yomiuri at Koshien Stadium on June 11. He entered the game in the seventh and did not allow a run in an inning of work. He topped out at 152km/h.
Source: Sanspo 6/11/2016
[UPDATE @ 5:10pm]
Mateo faced five hitters, threw twenty-three pitches, allowed one hit, and struck out one.
Source: Sanspo 6/12/2016