Gregerson's teammate Sean Doolittle felt a pain in his side following Saturday's game, one in which Gregerson got the win after pitching a scoreless eighth inning. If Doolittle can't go Sunday, Gregerson could be in line for the next save chance. After a dicey stretch earlier this year, Gregerson has been great for the A's, posting a 2.17 ERA, 0.983 WHIP and 48:12 K:BB in 58 innings. He's had a handful of saves over the years, so pitching the ninth won't be a foreign experience for him should the occasion arise.