Justin Upton is only batting .264 with seven home runs and 37 RBIs a season after finishing 4th in the NL MVP race. (Christian Petersen/Getty Images)
The Arizona Diamondbacks have made it no secret that they are willing to listen to offers from other teams about the services of right fielder Justin Upton. If Upton is traded he can block trades to four teams, reports FoxSports.com.
The four teams are the New York Yankees, Boston Red Sox, Cleveland Indians and Chicago Cubs.
Upton, 24, has slumped this season. He went 0 for 10 last weekend against the Chicago Cubs and is hitting .254 with no home runs in his past 17 games.
Upton is under contract with the Diamondbacks through 2015 and is batting .264 with seven home runs and 37 RBIs this season.