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4/12/2014 8:10 P.M. ET

Infielders Guerrero, Arruebarrena back on radar

PHOENIX -- Cuban middle infielders Alex Guerrero and Erisbel Arruebarrena are back on the radar.

Guerrero, who suffered a strained oblique muscle during the Freeway Series against the Angels, was activated Saturday by Triple-A Albuquerque, where he will continue to learn second base, playing alongside journeymen infielders Miguel Rojas and Carlos Triunfel.

The Dodgers released veteran Brendan Harris to make room for Guerrero.

Arruebarrena is still at extended spring training in Arizona but will likely be assigned to Double-A Chattanooga within the week to play shortstop alongside prospect Darnell Sweeney.

The Dodgers spent $53 million to sign the pair of Cuban middle infielders.

Wilson nears return; Beckett on target for Tuesday

PHOENIX -- Brian Wilson threw 20 pitches at the Dodgers' Camelback Ranch complex Saturday and Josh Beckett threw a bullpen session at Chase Field preceding what could be a time of busy moves for the pitching staff.

Wilson, who was disabled to allow him to rebuild arm strength, is eligible to be activated Tuesday and if it doesn't happen then, it will probably happen within a day or two later. That will require a corresponding roster move to make room for him.

Beckett's bullpen session puts him in line to start Tuesday in San Francisco. He started Thursday night against Detroit. Paul Maholm, who pitched one inning of relief Thursday night, could then start Wednesday night. Or the two could swap starting days.

With Beckett and Maholm pitching the first two games in San Franicsco, the Thursday game would seem to fall to Hyun-Jin Ryu. But the Dodgers might be tempted to give him another day off, let him start against Arizona again on six days' rest, and start Zack Greinke Thursday in San Francisco on normal rest.

Ryu has pitched 19 consecutive scoreless innings against Arizona, including 12 innings already this year.

Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.