Donnelly back as Mariners' third-base coach

SAN FRANCISCO -- Third-base coach Rich Donnelly rejoined the Mariners on Tuesday for the final game of Seattle's two-game Interleague series at AT&T Park after being hospitalized briefly Monday due to stomach pains.

• Cast your Esurance All-Star ballot for #ASGWorthy players

Donnelly, 68, was back in the third-base box Tuesday, with Chris Woodward returning to his normal first-base coaching duties.

"Rich is much better," manager Lloyd McClendon said. "We rode over [to the park] together. He's feeling better and he's glad to coach third. He's ready to go. He had some stomach discomfort and they took care of him last night at the hospital. He's on some medication and feels pretty good."

Donnelly said he had a urinary tract infection and was given IVs and some medicine during a three-hour stay at the hospital and will see a doctor upon his return to Seattle on Wednesday.

• Mark Trumbo was out of the Mariners lineup for a third straight day Tuesday as he recovers from back spasms that hit during pregame work Sunday in Houston, though he made a seventh-inning appearance as a pinch-hitter and grounded out in the 6-2 loss to the Giants.

"It's getting better," McClendon said. "If this was the playoffs, he could play. I'd imagine he'll probably be back in [the starting lineup] tomorrow."

Trumbo is now hitting .158 in 10 games since being acquired by trade from the D-backs.

• When Kyle Seager homered off Giants reliever Jeremy Affeldt in the eighth inning of Monday's 5-1 win, it was his fifth homer of the season off a southpaw, which is the most in the Majors by a lefty hitter against lefty pitchers. Seager entered Tuesday hitting .328 with 14 RBIs against lefties, well up from his career average of .244, and McClendon said it's another sign of the third baseman's development.

"He's just a good hitter," McClendon said. "He stays in against lefties. If you watch him, he uses the entire field to hit. I'm kind of surprised some teams still play the shift on him because he does hit the ball all over and I think that's given him the confidence to hit left-handers."

• Logan Morrison went 3-for-5 with two runs, an RBI and a stolen base hitting in the leadoff role Monday and will continue to frequently find himself in that spot in the batting order.

Video: SEA@SF: Mariners jump ahead on LoMo's RBI knock

"It seems to have jump-started him a little bit," McClendon said. "His at-bats are better. He's going deeper into counts, taking his walks. He's driven in some runs up there as well."

Morrison isn't your prototypical leadoff man, but McClendon said his ability to get on base is important for a Mariners club trying to find ways to score.

"Rickey Henderson-types come along once in our lifetime," McClendon said. "We have two guys that are capable of doing it. [Austin] Jackson has done a good job and LoMo does a good job. One thing LoMo gives us, particularly against right-handers, is more balance throughout our lineup because we can go left-right, left-right throughout the lineup which makes it hard for teams to match up late. Against left-handers, it's a different story. Then Jackson leads off."