Story by“Interesting” – ESPN journalist notices new formation Rosenior is trying with defender out of positionThe Chelsea NewsSat, January 10, 2026 at 8:44 PM UTC·2 min readChelsea are playing Charlton in an FA Cup tie under the lights at the Valley tonight, which also happens to be Liam Rosenior’s first game in charge. We were very curious about what team he would pick, and in the end he did surprise us a little by picking a far more rotated side than we would have expected. AdvertisementAdvertisementAdvertisementBut it was actually the formation that surprised us even more. It was a back 3, but not in a wing back setup as we’ve seen in previous years. Out of possession it was more of a flat 4-5-1.