SEATTLE -- Outfielder J.D. Drew progressed a bit in his comeback from his left shoulder injury, taking batting practice on the field as planned. Drew has missed 21 games since he went on the disabled list since July 26 (retroactive to July 20) with what is classified as an impingement.

Red Sox manager Terry Francona said Drew would take BP again Saturday, hitting the cage Sunday, and the team would re-evaluate him after the weekend. When asked what might follow if he comes out of Seattle no worse for the wear, Francona said, "Probably more hitting."

Drew is hitting .219 with four homers and 21 RBIs in 233 at-bats, and shortly before going on the DL, Josh Reddick had supplanted him as Boston's primary right fielder.

Adrian's power drought doesn't worry Boston

SEATTLE -- First baseman Adrian Gonzalez is a prime MVP candidate in the American League, with a .348 batting average, 18 home runs, 92 RBIs, .409 on-base percentage and .551 slugging percentage. Then again, he's in a bit of a power drought.

His homer on July 30 against the White Sox in Chicago was his first long ball since July 7, which means he has gone deep once since the All-Star break.

But you won't find anyone in the Red Sox clubhouse who seems concerned about this development.

"Sometimes they come in bunches," Red Sox manager Terry Francona said. "Sometimes they don't. I think he fought his neck for a little while, which I can understand. He couldn't get to some pitches. I think the good news is that he's such a good hitter that he finds a way to be really productive. They'll probably come in bunches again.

"He's sitting on 90-something RBIs. I care way more about that. The nice thing about the RBIs is ... he's not the all-or-nothing guy. He's still putting the bat on the ball. He's still driving his runs in. It's just that he's hitting singles right now, which is fine."

Youkilis, Scutaro scratched with back stiffness

SEATTLE -- The left side of Boston's infield was left out Friday, when third baseman Kevin Youkilis and shortstop Marco Scutaro were late scratches, both because of back stiffness.

The Red Sox started Jed Lowrie in Scutaro's place at shortstop and Mike Aviles in place of Youkilis at third. Manager Terry Francona hit Lowrie second, moved regular No. 2 hitter Dustin Pedroia to Youkilis' normal spot at cleanup and hit Avlies ninth in Scutaro's spot.

It's the second game on the sideline in the last four for Youkilis, who was given a regular night off Monday against the Twins in Minnesota and played in the next two games, going a combined 1-for-8.

Jenks makes it to Florida after hospital stay

SEATTLE -- The Bobby Jenks saga continued Friday, perhaps with a bit of progress.

The reliever, who is serving his third stint on the disabled list this season, finally made it to the team's complex in Fort Myers, Fla., after recovering from a hospital stay resulting from what manager Terry Francona called "intestinal turmoil" that had him out of action for three days.

Now that Jenks is ready to throw after being shelved twice for left back tightness (and earlier in the year with a right biceps strain), Francona said the team can map out a plan.

"He'll throw his first bullpen on Tuesday," Francona said. "He'll probably do that three times, then we're looking at a simulated game [before heading to a rehab assignment]. That's kind of the path we're on."

Francona said Jenks will probably take a day off in between each bullpen session, which means he could throw the simulated game within a week.

Worth noting

• Manager Terry Francona said left-handers Jon Lester and Erik Bedard would get the starts in the doubleheader against the Tampa Bay Rays slated for Tuesday at Fenway Park, and that John Lackey would get the ball in the Wednesday night series finale at home.

Francona said lefty Andrew Miller would likely get a start in the four-game series that begins in Kansas City on Thursday night.

• Entering Friday, center fielder Jacoby Ellsbury had 19 homers and 31 stolen bases, which means he was one homer shy of becoming the sixth player in Boston history with 20 homers and 20 steals in a season. He'd be the first since Nomar Garciaparra turned the trick in 1997. His 19 homers already are the most ever for a Red Sox player with 30 or more stolen bases.

• Reliever Alfredo Aceves earned a victory Monday night to improve to 22-2 in his career. According to the Elias Sports Bureau, he's the first pitcher in Major League history to win 22 of his first 24 decisions. His .917 career win percentage is the best in Major League history (since 1876) among pitchers with at least 14 decisions.

• Entering Friday, the Red Sox had hit a Major League-high 75 homers on the road this year and at least one in each of their last nine road games.