The Marlins have designated infielder Jose Lopez for assignment, according to Clark Spencer of the Miami Herald (via Twitter). The move will allow Florida to recall outfielder Bryan Petersen.
Lopez, 27, wound up spending less than a month with his new club after signing a minor league deal on June 9th. The Rockies DFA'd the infielder in late May and cut him loose on June 7th.
The veteran owns a career slash line of .262/.294/.393 but has an OPS of just .478 thus far in 2011.