Manchester City decided not to replace captain Vincent Kompany in the summer, and with the early-season injury to Aymeric Laporte, it was a decision they now probably regret.
The Frenchman may well be closing in on a return to fitness, but with John Stones having been ravaged by his own injury problems this campaign, it has forced manager Pep Guardiola to rely on the likes of Nicolas Otamendi and Fernandinho.
Guardiola has made it known that the Citizens are unlikely to sign any player during the January transfer window, but it is almost certain they will be in the market for a centre-back if the right one becomes available.
So who will they be targeting? Press the “next page” as we identify four centre-backs likely to be on the club’s radar.