masn-baseballs-orioles.jpgST. PETERSBURG, Fla. – It’s official: Chris Tillman will start tomorrow night’s game against the Rays.

Tillman was scheduled to start on Sunday, but he’s needed tomorrow after Brian Matusz was scratched.

Matusz underwent an MRI this afternoon on his sore back, and we’re still waiting for the results.

No word on Sunday’s starter. Mark it down as TBA.

It’s possible that Brad Bergesen gets the call after throwing two innings in Wednesday’s simulated game.

Update: Jeremy Guthrie is…ST. PETERSBURG, Fla. – It’s official: Chris Tillman will start tomorrow night’s game against the Rays.

Tillman was scheduled to start on Sunday, but he’s needed tomorrow after Brian Matusz was scratched.

Matusz underwent an MRI this afternoon on his sore back, and we’re still waiting for the results.

No word on Sunday’s starter. Mark it down as TBA.

It’s possible that Brad Bergesen gets the call after throwing two innings in Wednesday’s simulated game.

Update: Jeremy Guthrie is shutting out the Rays on three hits over eight innings. The last Orioles starter to throw eight or more scoreless innings on opening day/night was Rick Sutcliffe in 1992. He tossed a complete-game shutout in the first game at Camden Yards.

Guthrie has thrown 94 pitches and Jim Johnson is warming in the bullpen.

Update II: Ben Zobrist greeted Johnson with a home run on the first pitch. Orioles 4, Rays 1.