But the Catalan club never gave up on signing the 23-year-old and have been speaking to their Sevilla counterparts throughout the night and into the morning.
Mourinho left Spurs in seventh place in the Premier League and had crashed out of the Europa League, throwing away a 2-0 win from the first leg against Dinamo Zagreb.
The Hammers held their hosts for over an hour, before Tomas Soucek's own goal broke the deadlock. Harry Kane then netted his first of 2020 to seal Spurs' first win in eight matches in all competitions.
The end came quickly when Kerber was broken for the second time in the match in theseventh game of the second set. Williams roared to the title with a love game, sealing victory with a simple volley before joyfully collapsing to the turf.
Argentina won the game thanks to a goal from Nicolas Otamendi just past thehour mark. The current World Cup holders are top of the group with five wins from their opening six games.
Undeterred, Atletico grabbed their seventh goal in the 70th thanks' to a superb solo run by Vitolo, who seized the ball from two defenders and beat two more to score.
The Brazilian produced the most telling save with a brilliant block as Hazard bore down on goal just after thehour mark with the chance to double Chelsea's advantage.