From the Los Angeles Dodgers' official Twitter feed:

Today, Hong-Chih Kuo was activated from the DL and Kenley Jansen was optioned to Triple-A Albuquerque

Kuo was on the DL with back problems that contributed to an uncharacteristically wild start to his 2011 season.

The move comes after Kuo allowed just one hit with two strikeouts in his last rehab appearance for the Rancho Cucamonga Quakes on April 29, which was good news following two consecutive shellings for the high-A team. The Dodgers are certainly glad to have another late-inning arm on the team, as on-again/off-again closer Jonathan Broxton has struggled terribly this season.

Another reliever who has struggled this season was Kenley Jansen, and the 23-year-old reliever will try to rebound in Double-A (not Triple-A, as initially reported). Jansen had a fantastic start to his major league career, but this season he's issued eight walks and given up three home runs in 13-1/3 innings (granted, he's also got 22 strikeouts).