ST. PETERSBURG, Fla. - Baltimore Orioles starter Chris Tillman took a shutout into the seventh inning and Baltimore got three home runs on the way to a 6-2 win over the Tampa Bay Rays in Monday's season opener at Tropicana Field.

Outfielder Alejandro De Aza scored as the first batter of the season, then added a two-run home run, with first baseman Steve Pearce and shortstop Ryan Flaherty adding solo shots for the Orioles (1-0).

It was a disappointing debut for new Rays manager Kevin Cash, whose team had an error in its first chance and didn't get a hit until the fourth inning, playing to a sellout crowd of 31,042.

Tillman left with two outs in the seventh, giving up one run on four hits in a strong start.

Even the key outs went against the Rays (0-1): What looked like an inning-ending tag at the plate in the eighth was overturned on review, with officials ruling that Baltimore right fielder Travis Snider got under the tag of catcher Rene Rivera for a 5-1 lead.

Tampa Bay got a solo home run by third baseman Evan Longoria, and Opening-Day starter Chris Archer gave up six hits and four runs (one unearned because of his own throwing error) in five-plus innings.

Longoria had a chance for more in the eighth after the Rays cut the lead to 5-2 on shortstop Asdrubal Cabrera's RBI double. Representing the tying run at the plate with two on and two outs, Longoria popped out to second base on the first pitch.

Baltimore started off well. De Aza, its first batter of the season, reached on a throwing error by Archer. Der Aza advanced to second on a walk to third baseman Manny Machado.

De Aza tagged up and advanced to second on a fly ball to center by center fielder Adam Jones, then scored on a two-out single to left by right fielder Travis Snider.

The Rays didn't get a hit off Tillman until the fourth inning when right fielder Steven Souza singled, only to be thrown out in a rundown between first and second.

De Aza, who had only eight home runs in 142 games last season, gave the Rays 3-0 lead with a home run in the fifth inning. His blast drove in catcher Calen Joseph, who had doubled.

The Rays' second hit also resulted in an out on the base paths as first baseman James Loney, who had walked, tried to score from second on a single to right by second baseman Logan Forsythe. But Loney was thrown out at the plate.

The Orioles added another run in the sixth when first baseman Steve Pearce hit a solo shot to left field off Archer.

Archer got the Opening Day nod because staff ace Alex Cobb is on the disabled list.

NOTES: The Rays retired the No. 66 of former senior adviser Don Zimmer, who died in June. Zimmer, who spent parts of six decades in Major League Baseball as a player, coach and assistant, is the third Rays jersey to be retired, following Jackie Robinson's No. 42 and Wade Boggs' No. 12, which was retired in 2000. Zimmer's No. 66 is believed to be the highest number retired by any MLB team. ... Former Rays managing general partner Vince Naimoli, who was in that position from 1995-2005, returned to Tropicana Field to throw out the ceremonial first pitch. ... Before the game, the Orioles selected the contract of C Ryan Lavarnway and designated RHP Ryan Webb for assignment. ... Rays manager Kevin Cash made his debut as the team's fifth-ever manager, and also the youngest manager in the majors this year at 37.