SEATTLE – The story of the first game of an important O’s road trip was not hard to put a finger on. Right-hander Kyle Gibson, who had been on a six-start roll, hit a brick wall and that roll was stopped.

As the Seattle Mariners hit three homers off him and extended their winning streak to eight, Gibson and the Orioles got beat 9-2 in Seattle. Their AL East lead is now down to two games over Tampa Bay.

“First game of a long road trip, an important road trip for us. And I just didn’t give the team a chance to win,” said Gibson, who had an ERA of 3.86 in his previous six games with five quality starts.

He pitched 5 1/3 innings and allowed 12 hits to tie his career high. Gibson gave up nine runs to set a career high. He had only given up five runs or more four times this year out of 24 games. And for his career, he had never given up more than eight runs in any of his previous 285 career starts.

But a five-run fourth gave Seattle a 7-1 lead and they were on their way to a comfortable win. Gibson allowed a two-run homer in the first to Cal Raleigh, a three-run shot in the fourth to Julio Rodríguez and a solo blast in the fifth by Ty France. Each homer was hit 100 mph+ with Raleigh’s shot having a 112.6 mph exit velocity.

The Orioles have made the following roster moves:

• Activated RHP Jacob Webb. He will wear No. 66.
• Optioned RHP Joey Krehbiel to Triple-A Norfolk after yesterday’s game.

The Orioles optioned reliever Joey Krehbiel to Triple-A Norfolk after last night’s game and activated reliever Jacob Webb, who was a waiver claim Monday from the Angels.

Krehbiel made two appearances with the Orioles and retired all five batters he faced.

Webb, who’s wearing No. 66, was designated for assignment Saturday after posting a 3.98 ERA and 1.358 WHIP in 29 relief appearances. He walked 20 batters and struck out 34 in 31 2/3 innings.

The Braves drafted Webb in the 18^th round in 2014 out of Tabor College in Kansas. Prior to this season, he had appeared in 78 games over three seasons and had a 2.47 ERA and 1.304 WHIP in 76 2/3 innings.

Reliever Reed Garrett wore No. 66 earlier this season. It previously belonged to Tanner Scott and T.J. McFarland.

Orioles second baseman Adam Frazier has his right thumb taped after jamming it on a diving play in the final game in Toronto. He remains out of the lineup.

Manager Brandon Hyde said Frazier is available off the bench tonight. He might not have started anyway with the Orioles facing another left-hander, Houston’s Framber Valdez, who threw a no-hitter in his last outing.

“He’s been getting treatment since then, but he feels way better today,” Hyde said.

“He should be in there tomorrow.”

Center fielder Cedric Mullins remains with Double-A Bowie, starting in center field tonight in Richmond. His rehab assignment is nearing a conclusion.