Buchholz faced just nine batters, recording five groundouts and two flyouts. He lowered his spring ERA from 9.00 to 2.25.
Grandal was able to get through a three inning stint behind the plate Saturday without any ill effects. Manager Bud Black said Grandal could make his spring debut shortly. He's been recovering from knee issues.
Grandal hit .216/.352/.341 in 88 at-bats last year.
It's not known what was bothering Medlen, but the Mets' bench spotted the right-hander looking at his arm as he walked off the field, per ESPN.
Medlen was charged with one run on three hits in 3 2/3 innings. He struck out two. Medlen has a 2.08 ERA this spring.
"He got better the last three days. He was horse(spit) before then," manager Lloyd McClendon said, per the Tacoma News Tribune.
"That’s the hope," manager Ned Yost said. "We’ll see how he feels. He’s feeling better."
Arroyo had some issues throwing Saturday, but said he felt much better Sunday. He's been dealing with a back injury during camp. He said he believes he can still be ready for opening day.
Arroyo posted a 3.79 ERA in 202 innings last year.
"I think he's taking quality at-bats," Porter said, per MLB.com. "The one thing in which Jon and I talked about and [hitting coach John Mallee] is going to get with him today -- he doesn't have to over-swing. You're talking about a guy with tremendous power and he has power to all fields. When you [try] to hit the 500-foot home run instead of hitting the ball hard, sometimes you can miss pitches that you probably could hit.
"Overall, I think his at-bats have been good. I think he's over-swinging right now, trying to make something happen."