Floyd returned on Saturday evening and was checked out Sunday, including undergoing an MRI. There was no structural damage found, but Floyd does have tendinitis so he'll be skipped Monday in Boston.
Dylan Axelrod, who threw two scoreless innings and 31 pitches in relief during Friday's 14-inning victory over the Royals, will move up to open the four-game set at Fenway Park, followed by Philip Humber's return from the disabled list on Tuesday. Wednesday and Thursday's starters have yet to be determined.
Rookie Jose Quintana would be available on regular rest Wednesday, and the White Sox will also consider Floyd depending on how he bounces back from the soreness. If Floyd can't go, he would most likely be sent to the disabled list and the 10th rookie pitcher to be used by the White Sox during the 2012 season would be added to the roster.
"One thing after another, it is," manager Robin Ventura said of the latest pitching setback. "But again, it's part of having a long season. You're always having stuff like that.
"I guess it's unfortunate, but you keep on playing and find somebody who is going to fill it in and move guys around and to be able to do it. So far, we've been able to do it. We're going to look at how everyone is feeling to be able to move it around, and even see where Gavin is at when he gets back."
Floyd, 29, has turned around a rough season of late with a 3-1 record and 1.37 ERA over his last four starts spanning 26 1/3 innings. He threw 100 pitches in 7 2/3 scoreless innings against the Blue Jays on July 7 and threw 122 pitches on July 1 at Yankee Stadium. In his previous eight starts prior to those two, he topped 100 pitches just once.
Ventura said there were no signs of trouble leading up to Floyd's weekend issue.
"No. I mean not since when we went on the break," Ventura said. "But when we came back ... The last start he threw a lot, so it's one of those maybe he was throwing something a little different than he had before. I think just to clear his mind and my mind there was nothing structural. It's easy for me to say general tendinitis, but that's better than other news you can get."
"When Gavin says something ... he has very rarely said much about anything," said pitching coach Don Cooper. "When he or anybody else says something, we listen."
With the non-waiver Trade Deadline looming just over two weeks away, it's a safe bet that general manager Ken Williams also will be looking at the possibility of adding a veteran starter to the mix. Names such as Ryan Dempster, Matt Garza and Zack Greinke are commonly mentioned in most trade talks, but the questions for the White Sox are whether they have the impact Minor League talent necessary to pry away such a valuable piece. Also, how much of the future would Williams be ready to mortgage?
Much of the White Sox top young talent such as Addison Reed, Quintana and Nate Jones, to name a few, is already contributing at the big league level, and Williams is careful not to mess with what has been a special clubhouse chemistry during the 2012 campaign. But the White Sox are a first-place team and with John Danks looking no closer to returning from a left shoulder strain that has sidelined him for almost two months, Williams figures to be aggressive in capturing an American League Central title this season and beyond.
These aforementioned questions were presented to Williams by MLB.com via e-mail on Sunday. His response left the White Sox working under the radar, where they prefer to operate.
"I'd rather go about business quietly," Williams said. "Thank you."
That sort of trade speculation was not something Ventura or Cooper wanted to address either. They are more focused on continuing to win with what they have.
"Everyone is talking about scenarios, but nothing that would relieve any of this that's going on right now," Ventura said. "That's something that Kenny and [assistant general manager] Rick [Hahn] and [White Sox chairman] Jerry [Reinsdorf], they have to do that stuff. Around here, we're just dealing with who we have and how we can use them."
"Can rookies do this? Can they last? But heck, you can say it about everybody," Cooper said. "The strong survive and the teams that can deal with the injuries, they move on. I've enjoyed this process all year long and we're going to see if we can keep it going."