OAKLAND -- A's left-hander Brett Anderson took another step Tuesday in his recovery from Tommy John surgery when he threw his first full bullpen session, using all his pitches.

Anderson said on Wednesday that he expects to take an even bigger step in the next week or two.

"I'm going back to Arizona in a couple hours," Anderson said before the A's game against Kansas City. "And I'm going to stay there for a while, because I'm going to start throwing live BPs here pretty soon, I think. Guys don't want to come in at 11 o'clock to face live BPs when they've got to play 162 games."

Anderson will throw his next bullpen session on Friday at the A's Spring Training headquarters in Phoenix and begin throwing live battling practice to Minor Leaguers in "the next week or two."

"Get some warm weather and some younger guys so I can face them at my disposal," Anderson said.

Anderson underwent Tommy John surgery on July 14, and he's on track to return in mid-July.

"His [bullpen sessions] have really been terrific," A's manager Bob Melvin said. "I've said often in Spring Training, if you were to watch him throw, you'd think he was rehabbing something else. He's got the potential to be the top-of-a-rotation starter, and we probably look for that when it's almost like a trade, a midseason trade when he comes back. We're not trying to put an exact timetable to speed him up or anything, but he's doing beautifully at this point."

Anderson said he's not surprised that he's making such good progress.

"Tommy John's kind of a cut-and-dried deal, hopefully, for the most part," Anderson said. "If you do the rehab and you do the work, you're going to come back. I've been step for step right now. Hopefully there's no setbacks, but just follow the daily plan, and I've been feeling good. That's the goal."

A's offer tickets to Tuesday's rain-soaked fans

OAKLAND -- Ticket holders from Tuesday night's rain-shortened 3-0 loss to Kansas City will have a chance to return to a future game -- compliments of the Oakland A's.

The A's announced on Wednesday that ticket holders who attended Tuesday's game will receive a free field-level ticket to a future game of their choice this season, scheduled on a Monday through Thursday, excluding games on July 2-4 and July 19.

Ticket stubs can be exchanged for field-level tickets at Ticket Services, located on the West Plaza at the Coliseum.

"This gesture serves as only a small token of our appreciation towards our die-hard, rain-soaked fans who attended last night's game at the Coliseum," A's executive director of ticket sales and operations Steve Fanelli said. "Despite the less than ideal baseball conditions, our fans were tremendous in their loyal support of the team. We look forward to welcoming them back soon."

Cowgill gets second straight start

OAKLAND, Calif. -- Less than 24 hours after making his first start for the Oakland A's, outfielder Collin Cowgill was back in the starting lineup Wednesday afternoon for the finale of a three-game series against Kansas City.

Cowgill started in right field on Tuesday night for Josh Reddick, and he started in left on Wednesday, giving Coco Crisp a day off.

Cowgill, acquired from Arizona in an offseason trade, went 0-for-1 with two walks in his starting debut.

"Obviously what you want to do is play, so anytime you get one, two, however many you can, it's nice," Cowgill said. "I'm fortunate to be in there yesterday and today, and [I'm] looking forward to getting a 'W' today."

Cowgill hit a team-best .396 during Spring Training, and he welcomed the chance to make a good impression in back-to-back regular-season games. The key for a backup with limited playing time, Cowgill said, is to stay relaxed.

"The worst thing you can do is try to put pressure on yourself," Cowgill said. "Just go out there and try to play like you play every day. I've found if you come to the park and prepare the same way every day, it's not a surprise when you're in the lineup. That's a big factor in being comfortable in this role. Just prepare every day like you're going to play, and the day's you play, it's all the same."