Middlesbrough could now turn to players that are entering the final 12 months of their contracts. Middlesbrough have already been one of the more active Championship sides on the transfer front this summer. Michael Carrick has signed Luke Ayling on a permanent deal from Leeds United alongside Mainz 05 striker, Delano Burgzorg. Aidan Morris will also be heading to Teesside once he plays his final game for Columbus Crew this weekend. While the North East outfit have already signed several players this summer, this should not prevent them from looking for bargain deals for high-quality players in…