ST. PETERSBURG - The good news for the Rays is 3B Evan Longoria likely will not be sent to the 15-day disabled list.
The bad news is, they don't know how long he will be unable to play after irritating the plantar fasciitis in his right foot.
It occurred when Longoria ran to first base on a groundout in the second inning of Friday night's series opener against the Tigers.
The same injury limited Longoria, who was only one of 11 major-leaguers to start every game this season, to the role of designated hitter during the four-game series against the Royals from June 13-16.
"I've been battling with the plantar stuff for a better part of the month now and it just felt different (Friday)," Longoria said. "It felt like it kind of tightened up going down the line. (I) really don't have a definite prognosis. I know that at least for now, I'm not going on the DL, which is good. I'm pretty optimistic about the way I feel today."
In 2012, Longoria missed 85 games with a partially torn left hamstring, during which time the Rays went 41-44.
"From the beginning of what they've told me, (plantar fasciitis) is something you can play through if you can deal with the pain," Longoria said. "I've been dealing with that for a while now."
Kelly Johnson, who replaced Longoria in the top of the third inning Friday night, started at third Saturday against Detroit.
"It's something I think is going to threaten me long term," Longoria said.
The Rays recalled IF Ryan Roberts from Triple-A and optioned RHP Alex Colome to Durham.
Roberts appeared in 47 games this season before being sent down to make room for Wil Myers, batting .238 with three home runs and 13 RBIs.
Colome pitched six innings in the Rays' 6-3 loss to the Tigers on Friday, allowing four runs on four hits, including two home runs by Miguel Cabrera.
On Friday, manager Joe Maddon said LHP Matt Moore, LHP David Price and RHP Roberto Hernandez would start the first three games of a four-game series against the Astros starting Monday, and that either Colome or RHP Chris Archer would pitch the fourth game.
RHP Brandon Gomes returned from his minor-league rehab assignment, which began June 24, but remains on the 15-day DL after experiencing discomfort in his strained right lat.