San Diego Padres

Padres starting pitcher Edinson Volquez endured a shaky outing as he suffered his fifth loss of the season Tuesday night against the Cardinals.

Volquez (3-5) pitched two scoreless innings before surrendering a run-scoring double to Matt Carpenter in the third inning. He then gave up four runs in the fifth, including a two-run single to Carlos Beltran. The right-hander was charged with five runs on eight hits in six innings of work. He struck out five and walked one in a 10-2 defeat.

Volquez has allowed five runs in each of his last two starts. He is 0-2 with a 6.35 ERA in his last three starts since May 3, when he won his third consecutive start. He is scheduled to make his next start Monday at Seattle. Volquez went 2-0 with a 0.68 ERA in two starts against the Mariners last season.

Padres outfielder Carlos Quentin was held out of Tuesday's starting lineup against the Cardinals after tweaking his knee in an awkward slide on Monday. Manager Bud Black says he will return to the lineup Wednesday.

Quentin has played just twice since May 15. He is hitting .200 (5 for 25) in his last seven games played.

Padres reliever Luke Gregerson picked up his 10th hold during Monday's 4-2 win against the Cardinals by tossing two-thirds of a scoreless inning. Gregerson lowered his ERA to 0.96 and ran his scoreless outings streak to 12 (10 1/3 innings).

Padres catcher Yasmani Grandal (suspension) is batting .333 (3 for 9) with one double and one RBI through his first three games with Triple-A Tucson.

Grandal's 50-game suspension for testing positive for elevated levels of testosterone ends May 28. He's not sure if the Padres will recall him immediately, but Grandal said his focus is on making sure he's getting his at-bats leading up to his potential recall.

"I've got to get my work in first," Grandal said, per MLB.com. "I'm trying to get as many at-bats as I can here and trying to get a feel for the game again at the upper levels. I think they're going to be enough for me to go up to the big leagues. Whether I go up on the 28th or not, that's all up to [San Diego general manager] Josh Byrnes, I guess. I'm just concentrating on getting at-bats down here."

Padres outfielder Chris Denorfia tied a season-high with three hits Monday against the Cardinals. It was the second time this season he managed three hits.

Denorfia has hit safely in four of his last five games, batting .400 (8 for 20) with three RBI. His batting average has gone from .283 to .301 in that span. Denorfia is batting .294 with one double, one home run, six RBI and eight runs in 15 May games (13 starts).