WASHINGTON -- Ryan Mattheus, who is on the disabled list because of a plantar fascia strain in his left foot, had a good bullpen session Wednesday and didn't have any discomfort. But, according to manager Davey Johnson, there is still some "puffiness" in the foot.
Johnson said Mattheus will have pitchers' fielding practice on Thursday and cover first base.
"His arm is in great shape. He doesn't have any problems throwing," Johnson said.
Mattheus was having a productive season before going on the DL, going 2-1 with a 2.25 ERA in 19 games.