The Braves are seeking more for outfielder Justin Upton than they received back from the Cardinals for Jason Heyward. However, according to CBSSports.com Baseball Insider Jon Heyman, rival executives believe Atlanta received "too much" in return for Heyward.

The Mariners aren't willing to part with pitcher Taijuan Walker and the Orioles won't give pitcher Kevin Gausman.

Upton is coming off a season in which he hit .270/.342/.491 with 29 home runs and 102 RBI over 566 at-bats. The 27-year-old is entering the final year of his contract and is expected to make $14.5 million in 2015 before becoming a free agent.