The Tampa Bay Rays are expected to call up Junior Caminero ahead of Tuesday's game against the Houston Astros, according to a source.

The Rays will have to make a corresponding move to clear a spot for Caminero on their active roster.

Caminero, 21, hit .235 (8-for-34) with a homer and seven RBIs in seven regular-season games for the Rays last September.

"We're really excited about what we're seeing. The at-bats since he's come back [from the injured list] have looked really good. The defense has made progress," Rays president of baseball operations Erik Neander told 95.3 FM WDAE on Friday. "It's just a matter of wanting to make sure that, when he comes here, he's in position to have success -- because it is much, much harder to hit here than it is in Triple-A.

"It's just working really closely with the staff and gathering feedback to make sure that, when his name's called, ideally it's something where we can ride with him for a while and we don't look back and he's not having to look over his shoulder."

Caminero has hit well for Triple-A Durham, slashing .276/.331/.498 with 13 homers in 53 games this season.