Blake Swihart

Boston Red Sox's Blake Swihart throws out Cleveland Indians' Yan Gomes at first base in the first inning Friday, Oct. 2, 2015 in Cleveland. (AP Photo/Tony Dejak)

FORT MYERS, Fla. -- Boston Red Sox catcher Blake Swihart, whose 2016 season ended June 4 when he suffered an ankle injury, has had trouble with the accuracy of some of his throws back to the pitcher here in spring training camp.

He has thrown some over the pitcher's head and some wide. He also has double-clutched at times. He had trouble Thursday and Friday.

The Red Sox had Swihart convert to left field last year because it was a position of need. That's where he injured his ankle. He trained this offseason primarily as a catcher.

"I'm not concerned," Swihart said. "I'm going back to catch. When you're in the outfield you have a longer arm swing and a longer arm limit. And I'm just trying to shorten it back up. I'm misfiring here and there."

He said the only thing he's frustrated about is he feels bad for the pitcher.

"I feel fine. I'm not worried. You guys shouldn't be worried either," he added. "I'm working on my craft. And I promise the ball's going to get there."

Boston Red Sox manager John Farrell said. "This is something that has just kind of popped up a little bit. Has always been a good athlete. A good, athletic catcher. Accurate thrower. So there's some technique that he's working through right now. And this isn't even throwing the ball to second base. It's just a matter of his transfer and get the ball back to the pitcher in good shape. So we're working on it right now."

Here's a video of one of his throws:

Here's video of an example of the issues Blake Swihart had this morning in throwing back to the pitcher. pic.twitter.com/ceKkBHbtqn — NBC Sports Boston (@NBCSBoston) February 17, 2017