Both he and manager Joe Maddon said the team would allow him to rest for two days before deciding on the pitcher's fate the rest of the season.
"I'll just give it a couple of days and go from there," said Farnsworth, who had a similar issue towards the end of August during a series with the Blue Jays that caused him to miss four days of action. "It definitely got better in Toronto, then it got a little worse and got better. I just have to give it some rest, and hopefully I'll be ready. I definitely don't want to be out longer than a couple of days."
The Rays had a 5-3 lead with one out in the ninth, but Farnsworth suffered his second straight blown save when Jarrod Saltalamacchia and Jacoby Ellsbury hit back-to-back home runs. Farnsworth then gave up a double to Dustin Pedroia and a walk to Adrian Gonzalez before Maddon removed him from the game.
"I could just tell ... there wasn't that same jump on his pitches, and you could see there wasn't the same depth to the breaking ball," Maddon said. "I just knew it and he was trying to work through it, and when he got to first and second, nothing good was going to happen at that point."
Farnsworth said he first started having problems before he entered the game.
"It just never got loose," Farnsowrth said. "I could never just finish my pitches. I tried to go out there and do the best I could, but I didn't have my best stuff. It's tough because I want to go out there and perform for my team, but I just have to take it day by day."
Chris Girandola is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.