Papelbon pitched on Sunday, allowing a go-ahead home run to the Phillies' Maikel Franco, but did not show a drop in velocity or any other obvious signs of injury. He has a 3.28 ERA and 1.338 WHIP on the season, while converting 16 of his 18 save chances. His strikeout figures (18.6 percent of batters, 6.93 K/9) are lower than they have been in any season during his 11-year Major League career.
Papelbon, who was not available after the game to comment, has not had a heavy workload in recent weeks, making only three appearances since the start of June.
With Papelbon unavailable Monday, Baker turned to Shawn Kelley to close the game. After entering with one out in the eighth, Kelley retired all five batters he faced, striking out four of them, for his first save of the season. It was the third time this season the righty has recorded five outs in a game.
"I felt good," Kelley said. "[Baker] asked me how I felt, I said 'good,' and he said 'you're going back out.'"
Alex Putterman is a reporter for MLB.com based in Washington. This story was not subject to the approval of Major League Baseball or its clubs.