Arsenal defeated Slavia Praha 3-0 in Prague as North London rivals Tottenham Hotspur hammered Copenhagen 4-0 in the Champions League on Tuesday.
Tottenham manager Thomas Frank has eased fears over injuries to Mohammed Kudus and Djed Spence ahead of Tuesday's crucial Champions League clash with Copenhagen.
Chelsea midfielder Moises Caicedo delivered another match-winning performance in the Blues' 1-0 victory over Tottenham on Saturday.
Liverpool ended their nightmarish losing streak with a much-needed win over Aston Villa, while Chelsea moved into the top-five with a slender victory over a toothless Tottenham outfit.
Thomas Frank has backed Xavi Simons to make his mark at Tottenham as the Dutch forward prepares to face Chelsea, the club he might easily have joined in the transfer window.
Tottenham could welcome back two key players for Saturday's crucial London derby against Chelsea but only after losing another two to injury.