Per the latest BaseballAmerica minor league transactions, the Rays have signed infield Daniel Mayora, who played six seasons in the Rockies system, the last two at double-A. Mayora hit .286/.352/.440 with Tulsa in 2010, but was limited to just 66 games (his last game played was July 5th, but I can't find news of whatever injury sidelined him). Mayora played 35 games at third base, 25 at shortstop, and 10 at second base according to Baseball-Reference. In 2009, he played 73 games at second base, 32 at shortstop, 17 at third base. The Rays previously signed Ray Olmedo, who figures to be Durham's shortstop, but Mayora could be in that mix as well.
Also from the transactions list, D.J. Jones, who had previously retired, was listed as "reinstated from inactive list," so it sounds like he's coming back. He last played in 2009 at Hudson Valley.