Sunderland are still exploring strikers to bring in before the transfer window closes. The Black Cats look to be going to the wire with bring a striker in this summer, with hours left until the end of the transfer window. Regis Le Bris’ side already has the options of Eliezer Mayenda and new arrival Wilson Isidor up top, however the French manager and Kristjaan Speakman are willing to add extra firepower to their side. Tom Cannon has been linked with a move to Wearside after it was revealed that the Leicester City striker was set for a Championship loan move, however it is now likely that the …