Darren Oliver ensures option for 2011

When Texas Rangers reliever Darren Oliver entered Wednesday's game against the Detroit Tigers in the eighth inning, he fulfilled a clause in his contract that guaranteed his $3.25 million option for 2011.

The left-hander, who turns 40 next month, has pitched well enough that the Rangers would probably have picked up his option anyway, but he erased any doubts by making his 59th appearance.

"I knew I could get there if I avoided injuries and pitched well," Oliver said over the weekend.

Oliver pitched a scoreless inning Wednesday to lower his ERA to 2.50 in 57.2 innings. He has a 1-2 record with 63 strikeouts and 14 walks.