Haren, acquired in the offseason from St. Louis in a trade for left-hander Mark Mulder, will be under contract through the 2009 season with a club option for 2010.
Haren is 13-12 with a 3.81 ERA in 33 starts with the A's this year, ranking eighth in the American League with 210 innings coming into Monday night. After starting the season 1-7, Haren has gone 12-5 with a 3.40 ERA in his last 23 starts, including a nine-game winning streak
earlier in the year. The A's won 14 straight starts he made from May 31 to Aug. 7, tying Chuck Dobson's club record set in 1971.
Haren, who pitched parts of two seasons with St. Louis, has a career record of 19-22 with a 4.19 ERA.
General manager Billy Beane likes to lock up his young pitchers early in their careers with long-term deals to avoid salary arbitration, also doing it with Mulder, Barry Zito, Rich Harden and Tim Hudson.
The A's, who began the night fourth in the AL in ERA at 3.70, could bring back their entire rotation for next season. Zito, Harden and Haren are all signed for 2006, with Joe Blanton and Kirk Saarloos also under Oakland's control.
Wells acknowledged Sunday that he's received three cortisone shots in his right knee, the most recent last week in Tampa.
"You'll never know if I do get another," Wells told the paper. "And I don't think you should know. Some things are sacred.
"If I get an injection, it's good news for you guys but bad for us, because if the other papers get a hold of it, [other teams] know a guy has a bad leg, they bunt on him. It's advantage, them."
Wells said "something's going on", but declined to reveal what that was until after the season.
Atlanta Braves: Left-hander Mike Hampton underwent Tommy John surgery on his left elbow in New York. Hampton endured an injury-plagued season until doctors finally determined that pain in his forearm was actually coming from his elbow. The operation was performed by Dr. Dave Altchek, the Mets' team doctor. Hampton's relationship with Altchek went back to the 2000 season, when the left-hander pitched for New York. Hampton will miss the entire 2006 season while rehabbing his elbow.
Tampa Bay Devil Rays: His voice cracked. His eyes reddened. Tears welled.
Lou Piniella was so proud of the way his team played in the second half of the season, his emotions bubbled over.
"I got a little emotional, I'm sorry," Pinellia told the St. Petersburg Times. "I just got a little emotional when he said we played over .500. It feels good. I hope we win a couple more. It's [an accomplishment]. I think everybody wrote us off pretty good."
The Reds outfielder underwent a pair of arthroscopic surgeries to clean out both his left knee and the scar tissue surrounding his right hamstring on Monday.
Reds medical director Dr. Timothy Kremchek performed both surgeries, which took a total of 75 minutes.
Griffey is expected to be fully recovered from his surgeries in four weeks.
A series of severe injuries cut short his last four seasons. The most severe injury happened last August, when he tore a hamstring from the bone. Doctors reattached it using three screws.
Griffey wasn't fully recovered from that career-threatening injury when he reported for spring training, but got better as the season went along. The end of the incision never fully closed, requiring the surgery Monday.
Doctors also cleaned fragments from his left knee, which has been bothering him from time to time over the last three years.
St. Louis Cardinals: Jason Marquis, who was in the bullpen but wasn't used because of Jeff Suppan's stellar start on Sunday, could make a relief appearance Tuesday, the St. Louis Post-Dispatch reported.
As the Cardinals try to set their playoff rotation, Marquis will be in the bullpen with the potential to start Saturday against the Reds, the paper reported.
"We'll see what happens Tuesday," pitching coach Dave Duncan told the Post-Dispatch. "If [Marquis] can get a couple innings on Tuesday, that would line him up for Saturday and then we'll see what goes from there."
Matt Morris is scheduled to start Tuesday, Chris Carpenter Wednesday and Mark Mulder on Friday. Suppan does not have another start scheduled, although he is also an option Saturday, the paper reported.
Los Angeles Angels: Available tickets for AL Division Series games at Angel Stadium sold out in 45 minutes.
The tickets were sold through the Angels' Web site and Ticketmaster's phone lines. The Angels didn't announce how many tickets were made available, saying only there were several thousand. A limit of four tickets per game was imposed.
Angels spokesman Tim Mead said plans for selling tickets to the AL Championship Series and World Series will be announced at a later date if the team qualifies.
If the season ended today, the Angels would play the White Sox, with the best-of-five series beginning in Chicago on Oct. 4. The Angels would play a home game Oct. 7 and another the following day, if necessary.
The AL West-leading Angels entered Monday night's opener of a four-game series in Oakland four games ahead of the Athletics and can clinch the division title by splitting the series.
Information from SportsTicker and The Associated Press was used in this report.