DETROIT -- Carlos Guillen said Monday that his bruised left knee is still sore, and indicated he'll miss at least two more weeks before he resume activities. However, he still expects to return to action in September.

Asked how his knee is feeling, Guillen said, "Right now, it's not good."

Guillen suffered a deep contusion in his knee last week when Yankees speedster Brett Gardner collided with him sliding into second base on a game-ending double play. The Tigers medical staff said Guillen's knee would feel worse before it feels better, so the fact that Guillen is still feeling what he called "sharp pain" isn't altogether a surprise.

The original timetable for Guillen was set at him missing 2-3 weeks, and it's looking like the long end of that prognosis is the best-case scenario.

Second-half surge gets Wells to Detroit

DETROIT -- Casper Wells said he turned his season around once he learned to have fun playing again. He's hoping to carry that into the big leagues now that he's back with the Tigers.

"Just kind of got back and fun," Wells said, "not worrying about results as much as just going out there and playing the game and letting your abilities take over and having fun with the guys. You need that kind of outlet, I think, especially when playing a sport and doing the same thing day-in-day out. It can get habitual."

The Tigers reset their roster to 13 position players and 12 pitchers by recalling Wells from Triple-A Toledo Monday. They designated reliever Enrique Gonzalez's contract for assignment to make room.

The Tigers went to an eight-man bullpen ahead of their series last week in New York to help ease the strain on their exhausted bullpen, sending down outfielder Jeff Frazier and calling up lefty reliever Daniel Schlereth. Detroit swapped pitchers with Toledo on Friday, sending down Robbie Weinhardt and calling up Alfredo Figaro, but decided to stay with an extra reliever after three consecutive starters lasted just five innings against the Yankees.

Detroit's bullpen is in much better shape now after back-to-back seven-inning performances against Cleveland Friday and Saturday from Armando Galarraga and Max Scherzer and an eight-inning outing from Justin Verlander Sunday.

Wells was up with the Tigers in May, starting two games and entering two others as a defensive replacement. He's hitting .233 for the Hens this year with 21 home runs and 46 RBIs, but his recent numbers are outstanding. He's batting .354 (23-for-65) in August with seven doubles, three triples, five home runs, 12 RBIs and a 1.246 OPS. His OPS since the All-Star break is 1.040 to go with a .295 second-half average.

"I definitely have a different feeling than when I went out there the last time," he said. "I feel confident."

Gonzalez spent the summer as a long reliever out of the Tigers bullpen. But when it came time to drop a pitcher, the Tigers opted to give a late-season shot to youngsters such as Figaro and stick with Schlereth over the veteran Gonzalez, who had an 0-1 record and 3.81 ERA in 18 games this season.

"Truthfully, it came to a situation where I'm not sure today he was the right guy to go," Leyland said. "But looking down the road, with some other guys being what our people think are pretty good prospects, we said, 'Let's take a look at them.'"

Kell to have post office dedicated in his honor

DETROIT -- Hall of Famer George Kell will have a post office dedicated in his honor in his hometown of Swifton, Ark., during a ceremony Thursday, the Arkansas Congressional delegation announced Monday.

The ceremony will include U.S. Senator Mark Pryor and Congressman Marion Berry.

Kell starred for the Tigers during and after his playing career. A 10-time All-Star over his 15-year Major League career, Kell spent seven seasons in Detroit. He won an AL batting title with the Tigers in 1949 and led the league in hits a year later.

Following his retirement as a player in 1957, Kell went into broadcasting. He joined the Tigers broadcast team in 1959 and stayed until 1996, including 22 seasons with Hall of Famer Al Kaline. He also had a little-known career in government, serving a decade on the Arkansas State Highway Commission.