What happened: Chelsea will continue negotiations with Sunderland this week in an effort to break the deadlock over Granit Xhaka. An £8m proposal has so far fallen short of Sunderland's valuation, but the midfielder is pushing hard to force the move through. Xhaka is keen to work again under Xabi Alonso at Stamford Bridge.

Why it matters: Xhaka previously thrived under Alonso and would add experience and on-pitch leadership to Chelsea's midfield. The player's own desire to make the switch gives Chelsea leverage as the clubs try to bridge the valuation gap. A reunion with his former manager is the driving force behind the pursuit.

What to watch: Watch whether Chelsea raise their offer beyond £8m to meet Sunderland's asking price, and whether Xhaka's push accelerates an agreement in the coming days.