CBSSports.com Baseball Insider Jon Heyman reports that Diamondbacks general manager Kevin Towers is not looking to trade outfielder Justin Upton, unless he can find a deal equivalent to the one he agreed to with the Mariners, which Upton vetoed last week. The Diamondbacks reportedly would have received pitching prospect Taijuan Walker, shortstop prospect Nick Franklin plus two additional prospects from Seattle in exchange for Upton. Heyman cites the Rangers, Braves, Rays, Mets and Orioles as teams that may continue to pursue the two-time All-Star.