"The market for the Rays to trade one of their starters was reshaped and potentially redefined Saturday when the Reds paid a hefty price — four players, including promising first baseman Yonder Alonso — to acquire right-hander Mat Latos from San Diego.

The deal, which also includes catcher Yasmani Grandal, starter Edinson Volquez and relief prospect Brad Boxberger, takes the Reds off the Rays' list of potential trade partners.

But it could put the Padres in play. They now have two young, powerful first basemen in Alonso and Anthony Rizzo, and are likely to trade one.

Because it's likely the Rays already discussed Alonso, a right-hander who is better with his bat than glove, in talks with the Reds, Rizzo, a 22-year-old lefty slugger, could emerge as an interesting possibility. The Rays need a first baseman and prefer a left-hander with a smooth glove. The Padres' top prospect, per Baseball America, Rizzo hit .331 with 26 homers and 101 RBIs in 93 games at Triple-A Tucson in 2011, though he hit .141 with one homer and nine RBIs in 29 big-league games."