Despite strong interest, sources are reporting that Jhon Lucumi's expected move to Sunderland has fallen through. The defender will continue at Bologna after talks between the two clubs failed to reach an agreement. It's a frustrating development for all parties involved as they look to strengthen their squads. Negotiations failed to produce a deal, and with no other reported suitors, the situation is set to remain unchanged for Jhon Lucumi. Sunderland's back line has been a real strength this season, conceding just 0.86 goals per game (6 in 7). Jhon Lucumi would be expected to slot into that unit and hold his own in an already solid setup. Reports suggest Sunderland are monitoring Andre-Frank Zambo Anguissa and Marc Guiu whereas Bologna have not been associated with other players at this stage. Stay tuned for more details as the story develops. Need more Sunderland transfer rumours? Follow @PlayerSwitchCom on Twitter for news and updates as they happen.