Ken Rosenthal of FOXSports has a few Colorado Rockies rumors to keep your eye on:

Rosenthal says the Rockies are out on Florida Marlins Jorge Cantu.

The Rockies were previously known to be quietly shopping pitcher Aaron Cook. Rosenthal says the Philadelphia Phillies could be interested in the right-hander. Cook, 31, is 4-6 with a 4.78 ERA in 19 starts this season.

Earlier Rosenthal said the Rockies could trade left-handed reliever Joe Beimel. Rosenthal now says there could be 4-5 teams in on Beimel. One of those teams are the Phillies.

The Rockies could re-sign starting pitcher Jorge de la Rosa. de la Rosa, 29, is 3-3 with a 5.65 ERA in 8 starts this season.