Arsenal’s Under-18 side thrashed Tottenham’s 6-0 on Saturday, while Chelsea destroyed West Ham 7-0.
Bakayo Sako and Xavier Amaechi both scored twice for the Gunners and there were also goals for Trae Coyle and Matthew Smith.
Meanwhile, Chelsea led 4-0 at half-time and Charlie Brown then scored a hat-trick after coming on as a substitute.
Jon Russell, Marc Guehi, Tairiq Uwakwe and Clinton Mola also scored in a one-sided match at Chelsea’s Cobham training ground.