HOUSTON -- Huston Street's road to recovery has taken him to Toronto, where he is being examined by a doctor who specializes in treating ulnar nerve injuries.

Street flew to Toronto on Tuesday and was examined Wednesday by Dr. Anthony Galea, the team physician for the Canadian Football League's Toronto Argonauts and founder of the Institute of Sports Medicine and Human Performance. Galea has also worked with the Canadian Olympic Team and treated tennis players who have issues with the ulnar nerve, the part of the elbow where Street's injury is centered.

It's an obvious sign the A's won't get their closer back any time in the near future. Street already had been examined by Dr. Lewis Yocum when he went on the disabled list in mid-May.

"This is the guy Huston wanted to see," A's assistant general manager David Forst said. "We'll see what course of treatment they recommend and how long he might stay there."

Street could stay in Toronto and undergo physical therapy at Galea's facility for several days to a week, Forst said.

It was thought that Street dodged a major bullet when Yocum concluded there was no structural damage in his right elbow, meaning surgery was not necessary. But Street's condition has turned out to be worse than anticipated.

"Surgery has not been discussed," Forst said.

Veteran left-hander Alan Embree has converted seven of eight save opportunities with both Street and Justin Duchscherer hurt, and the team has no current plans to pursue a regular closer via trade, according to Forst.

"Alan has done a fantastic job," Forst said. "At this point we're committed to filling holes internally."

Not going anywhere

The A's announced that general manager Billy Beane and president Michael Crowley both have signed contract extensions with the A's that will take them through the 2014 season.

The move gives the organization a renewed sense of stability at the top, but it was hardly a shock considering owner Lew Wolff had made both limited partners in team ownership when Wolff took over in April 2005.

Beane already was under contract through 2012 and Crowley was locked up through 2008.

"Any opportunity to continue to work with Lew and the rest of the people here makes me feel very fortunate and lucky," said Beane, who's been the A's GM since October 1997.

Rich's return

Rich Harden could pitch for the A's as soon as next week, said manager Bob Geren, adding the right-hander would throw out of the bullpen. Geren is hopeful of having Harden throw during the upcoming homestand, which begins Friday against the St. Louis Cardinals and concludes Wednesday against the Cincinnati Reds.

Before that, Harden most likely will pitch in a simulated game rather than throw in the minors.

Harden showed a live fastball during Tuesday's bullpen session and said his strained right shoulder felt good.

Asked if the plan was still to have Harden return to the rotation once he builds his arm up through relieving, Geren responded: "As of now, yes."

Short hops

Mike Piazza (shoulder) took early batting practice on the field before Wednesday's game against the Houston Astros and said he'll continue to take BP for a "few more days" before a decision is made on when he'll go on a rehab assignment. ... Outfielders Travis Buck (right thumb) and Shannon Stewart (right foot) were held out of action again, though Geren said Buck was available for defense or pinch-hitting duties. Stewart said the pain is in his plantar fascia, the area he hurt in 2004 when he missed nearly two months while playing for the Minnesota Twins. ... Geren said he plans to give catcher Kurt Suzuki his first big-league start Saturday against the Cardinals. ... Forst said Bobby Kielty (left calf) likely will start a rehab assignment this weekend but that fellow outfielder Chris Snelling (left knee) has stopped baseball activity and will have his knee examined in Southern California on Friday.

-- Joe Stiglich