*Sporting's Bunbury set for training stint with Bolton
*Edu again drawing winter interest in France, England
*Spector, Birmingham keep rising
*Antunez on the way out at Tecos
*Duka aiming high with U23's
*Brkovic is breaking out for Velez Mostar and is playing the best soccer of his young career
*The next big thing in U.S. center backs ... who will it be?
