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02/28/12 3:40 PM EST

No decision yet on Zumaya surgery

FORT MYERS, Fla. -- Joel Zumaya has yet to inform the Twins whether he will undergo Tommy John surgery to repair his torn ulnar collateral ligament, general manager Terry Ryan said Tuesday.

Zumaya, who tore his UCL during a live batting practice session on Saturday, is weighing whether to have the surgery and attempt another comeback, or retire at the age of 27.

"I have not heard from Joel Zumaya and I don't know if that will be in the next day or two or in a week," Ryan said. "I don't know if his agent will call us or if he'll call me and give us his decision. But I'm still waiting."

Ryan said he still has until the end of Spring Training to decide whether to cut Zumaya or place him on the 60-day disabled list.

"That isn't an issue right now," Ryan said.

Liriano already ahead of last year's pace

FORT MYERS, Fla. -- Twins left-hander Francisco Liriano threw his third live batting practice of the spring on Tuesday, and is scheduled to make his Grapefruit League debut on Sunday.

Liriano, who threw against Justin Morneau, Danny Valencia and Drew Butera, didn't say if he will be pitching against the Red Sox or Rays on Sunday, as the club is traveling to a pair of split-squad games.

But he said he's had no problems so far this spring, and is feeling much better than he did at this point last year when he was still dealing with shoulder problems.

"Every day my arm feels way better," Liriano said. "I feel like I'm getting better control of my fastball and mechanics-wise, I'm getting better too."

Liriano said he mostly threw fastballs during his session Tuesday -- including one that hit Danny Valencia in the shin -- and mixed in five sliders.

He also got Morneau to swing and miss on a nasty slider in the dirt, but gave up a homer on a fastball.

"I didn't know he was ready to go," Liriano joked about Morneau. "I thought he'd be behind. But he hit the ball hard."

But Liriano said he's looking forward to making his first official start on Sunday, and hopes to stay consistent out on the mound.

Baker, Blackburn to pitch 'B' game Thursday

FORT MYERS, Fla. -- Twins manager Ron Gardenhire announced that right-handers Scott Baker and Nick Blackburn will both pitch one inning against the Red Sox in their "B" game at Hammond Stadium on Thursday.

Gardenhire said he plans on using nine pitchers in the game, but added he would wait until Wednesday to name the other seven pitchers.

"Baker and Blackburn are going to be the first two pitchers," Gardenhire said. "We've got nine, one-inning guys.''

The Twins are expected to play mostly non-roster and younger players in the "B" game. The club opens Grapefruit League play on Saturday against the Rays.

Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, and follow him on Twitter @RhettBollinger. This story was not subject to the approval of Major League Baseball or its clubs.