Phil Rogers of the Chicago Tribune has the scoop:

Looking to upgrade in right field, the Pirates are studying deals for Nate Schierholtz and Alex Rios. It is possible that they’ll make a move sooner rather than later, as they are tied for the NL Central lead while last in OPS at the position (slash line of .239/.302/.377 from seven right fielders, with Travis Snider getting the most playing time).