Ann Oldenburg, USA TODAY

Tough-guy celeb feud alert!

When news broke on Tuesday that Harrison Ford will be replacing Bruce Willis in Expendables 3, no one sounded happier than his co-star Sylvester Stallone.

So happy that he got in a few digs at Willis on Twitter, writing, "GREEDY AND LAZY ...... A SURE FORMULA FOR CAREER FAILURE."

GREEDY AND LAZY ...... A SURE FORMULA FOR CAREER FAILURE? Sylvester Stallone (@TheSlyStallone) August 6, 2013

Stallone's rep confirmed to Huffington Postthat the comments were directed at Willis.

Willis made headlines recently for anawkward interview he and Mary-Louise Parker did with a London radio show host.

Expendables 2, released in August 2012, starred action stars including Stallone, Willis, Dolph Lundgren and Jean-Claude Van Damme. Expendables 3 is set to begin shooting in mid-August.