BOSTON -- Red Sox shortstop Jed Lowrie was held out of Monday night's 7-3 loss against the White Sox because of stiffness in his left shoulder, but was available to pinch-hit.

He said he felt a blast of pain during a collision with Carl Crawford on a fly ball during the first game of Sunday's doubleheader with the Tigers.

"They're calling it a contusion," Lowrie said. "It's not structural or any tear or anything like that. I just have to work through that knot -- it's pretty tight."

Drew Sutton continued his trip around the diamond and made his third start of the season at shortstop. It was the sixth start in seven games for the utility infielder, who has also spent time at second and third.

Lowrie sat out Sunday's nightcap and manager Terry Francona said he teetered with the idea of using the shortstop Monday, but wanted to be cautious, especially since some players didn't arrive back to their homes until around 3 a.m. ET on Monday morning.

"Because we're not taking [batting practice] on the field and it's a late arrival, I said let's just hit in the cage and as the day progresses, if you feel good, maybe we'll pinch-hit you," Francona said, noting that Lowrie will likely be in the lineup on Tuesday. "And he probably could certainly play today. But the more I started talking to him, I thought, 'OK, we're going to use our heads here.'"

Lowrie took batting practice before Monday's game, hoping to stay active and work through the stiffness. He's played in 24 of the club's 27 games in the month of May, but said, aside from his shoulder, he's been fully healthy this season.

"My body feels great," he said. "I'll continue to do treatment tonight and tomorrow, and I'm confident [my shoulder will] continue to get better quickly. It's gotten better since last night."

Jenks set to return to action on Tuesday

BOSTON -- Red Sox reliever Bobby Jenks will be activated from the 15-day disabled list on Tuesday, just in time to face his former team.

The former White Sox closer hasn't pitched since May 1 because of a right biceps strain. He threw an inning with Triple-A Pawtucket on Sunday, allowing one run on a hit and a walk while striking out one.

"The velocity was good," said Red Sox manager Terry Francona. "He didn't hold the runner, which I think happens sometimes. But it's a good thing he went [to the DL], because he shook a little rust off, even to his own opinion. And now he'll come back and help us."

Shortstop Marco Scutaro met with Red Sox medical director Tom Gill to check on his oblique strain, but the results were not yet known before Monday's game.

Lefty reliever Franklin Morales, on the DL with a forearm strain, had an MRI on Monday morning, but the results were also unknown.

Patriotic pride flows at Fenway Park

BOSTON -- Memorial Day didn't give the Red Sox much to celebrate after Jon Lester was knocked around in a 7-3 loss to the White Sox, but Fenway Park was thriving with patriotic pride Monday evening.

Red Sox players were sporting red and white hats with stars and stripes coloring in the famous "B" logo, while the White Sox donned similar caps with red, white and blue filled in their logo as well.

Service members dressed in uniform were honored before and during the game, and they lined the field to unveil the giant flag covering the Green Monster while the national anthem was played.

Catcher Jason Varitek had specially made camouflaged catching equipment to celebrate United States veterans, though he never got a chance to wear it with Jarrod Saltalamacchia behind the plate. The gear will be raffled off with proceeds going to the Red Sox Foundation/Massachusetts General Hospital's Home Base Program, which is dedicated to helping veterans with combat-related stress or brain injuries.

Worth noting

• Red Sox players had to take a league-administered drug test before Monday's game, and many commented on the irony of taking their second drug test in three weeks, though when they were 2-10 in April, they weren't tested.

• Jacoby Ellsbury was riding a five-game hitting streak entering Monday, but more importantly, he'd walked seven times in his last six games, raising his season on-base percentage to .368.

"If he hits in deep counts and gets on base, we're going to be in a lot better shape," said manager Terry Francona. "We're a totally different team when he's hitting successfully in the leadoff spot."

Ellsbury doubled and scored in the third inning to push his streak to six games.

• With his 300th career double in the second game of Sunday's doubleheader with the Tigers, Jason Varitek became just the sixth catcher to reach 150 homers and 300 doubles in the American League. Varitek wore camouflaged catching equipment on Monday and it will be raffled off with proceeds going to the Red Sox Foundation/Massachusetts General Hospital's Home Base Program, dedicated to veterans with combat-related stress or brain injuries.

• While the Red Sox faced Jake Peavy on Monday night, it was the 14th time since the start of the 2010 season that they've gone against a former Cy Young winner. They're 11-3 when the opposing starter has a Cy Young on his resume.