MIAMI -- The September callup period begins on Saturday, but don't expect any immediate moves by the Marlins.
Manager Ozzie Guillen said Sunday is the likely day the club will bring a couple of players up.
A strong possibility is third baseman Zack Cox, who has been playing at Double-A Jacksonville since being acquired from the Cardinals' organization on July 31 for reliever Edward Mujica.
In 23 games for the Suns, Cox is batting .256 with six doubles, one triple, one home run and 13 RBIs.
A first-round pick out by the Cardinals out of the University of Arkansas in the 2010 First-Year Player Draft, Cox is a left-handed-hitting third baseman who could factor into the mix at the hot corner for Miami in 2013.
The team also is expected to bring up a Triple-A reliever. Evan Reed and Alex Sanabia are possibilities.
"It's not going to be that many," Guillen said. "They're going to find the names who should be here, who earned it."
Guillen feels too many times players are promoted because of reputation, rather than earning the callup.
"I'm very against that; you're here because we like you," Guillen said. "I think kids in the Minor Leagues should deserve and earn being in the big leagues. It's not easy to come here."