Dell UltraSharp U2515H Monitor

I'm curious if my 27 inch mid 2011 iMac will be able to run two (2) Dell Ultrasharp U2515H monitors http://www.amazon.com/Dell-UltraSharp-U2515H-25-Inch-LED-Lit/dp/B00SPWPF1O?ie=UT F8&psc=1&redirect=true&ref_=ox_sc_act_ti…). I typically need to watch sporting events simultaneously on two different monitors and wonder whether my iMac can handle both of these 25 inch monitors at the same time. Any help would be appreciated.