"He's very key to our bullpen in his flexibility," Sabean said of Lopez, who earned $4.25 million this year.
Entering Sunday, Lopez had inherited 57 baserunners, the National League's third-highest total. Yet only six of them had scored. That's 10.5 percent, best in the league.
Lopez finished with a team-high 69 appearances. He was unscored upon in all but seven of them. His 1.068 WHIP (walks plus hits per inning pitched) was the best of his 11-year career.
Left-handed batters hit .156 this year (14-for-90) off Lopez, 36. He was more effective in this area as the season progressed, as he limited lefties to three hits in their last 34 at-bats against him -- an .088 batting average.
Chris Haft is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.