SAN FRANCISCO -- Brian McCann wasn't exactly thrilled with the results he produced while playing for the first time in more than a week. But he certainly had reason to be excited about the fact that he didn't encounter any post-concussion symptoms during Monday night's loss to the Giants.

"I felt fine," McCann said. "I was just a little nervous. It felt like Opening Day. I hadn't had to sit out for seven days for a long time."

Before Monday, McCann had been sidelined since July 27, when a collision at the plate with Phillies outfielder Shane Victorino caused him to suffer a mild concussion. The previous time he was forced to miss more than a week was when an ankle injury put him on the disabled list in 2006.

The extended absence might have factored into the fact that McCann went hitless in three at-bats Monday. His most frustrating plate appearance came when he produced an infield pop fly with two outs and the bases loaded in the seventh inning.

"Once I start getting more at-bats, I start getting more comfortable and build confidence," McCann said.

In just his third full Major League season, McCann has already established himself as one of the game's top offensive catchers. Entering Tuesday, he led all Major League catchers with 20 homers and a .943 OPS (on-base percentage plus slugging percentage). His .300 batting average ranked third behind St. Louis' Yadier Molina ( .308) and Minnesota's Joe Mauer (.317).

Because of his position, McCann is obviously susceptible to getting his head jarred again. But he says that he hasn't allowed this possibility to bother him.

"I didn't think about that at all [Monday] and it won't bother me at all this season," McCann said. "If there's another play at the plate, I'll block the plate again and won't be scared. It was just a freak thing. It comes with playing the position."