Chelsea's perfect record in the pre-seasons finally came to end after they suffered a humiliating 0-3 defeat at the German side Werder Bremen, while Arsenal again failed to win the Emirates Cup following a narrow 0-1 loss to Monaco.
The Blues, who are nearly at their full strength with the likes of Eden Hazard, Diego Costa, Cesc Fabregas, Gary Cahill and John Terry amongst their ranks, were completely outclassed by a modest Werder Bremen side.
Eljero Elia opened the scoring from a penalty before Ludovic Obraniak added another in the closing stages of the first half. Finally a late penalty from Felix Kroos sealed the game for Werder Bremen, helping them maintain their unbeaten run in the pre-seasons.
The first chance of the game arrived in the 11th minute when former Chelsea striker Franco Di Santo powered a header from close range. However, Thibaut Courtois did well to punch the ball away.
At the 20th minute, Terry gave away an accidental penalty after the ball struck his arm in the box. Elia stepped up and eased the ball into the bottom right corner of the net.
Things went from bad to worse for the Blues after the German side grabbed their second goal in the 37th minute through Obraniak. Clemens Fritz whipped a cross into the box and Obraniak calmly headed the ball past a diving Courtois.
Chelsea found the nets through Mohamed Salah just before the half time, but his effort was ruled out as offside.
Close to the hour mark, the Blues' appeal for a penalty was turned down, even though Fritz appeared to be blocking a cross with his arm.
Finally, it was Werder Bremen who were awarded another penalty after a robust tackle from Nathan Ake brought down Felix Kroos in the box. Kroos stepped up and smashed the ball past Petr Cech, sealing the game for his side.
Meanwhile, Arsenal again failed to lift the Emirates Cup after they suffered a narrow 0-1 defeat at the hands of French side AS Monaco.
Radamel Falcao, who started for the first time in six months following a knee injury, netted the only goal of the game as the French side beat Arsenal in the pre-season game.
Although Arsenal put in an energetic performance early on in the game, they failed to pose a threat to Monaco goalkeeper Danijel Subasic.
Monaco, on the other hand, was more threatening in the final third, creating a number of chances in the opening stages of the game.
The French side's efforts finally bore fruit as Falcao finally broke the deadlock in the 38th minute. Joao Moutinho whipped a cross in the box, and the Colombian, after losing his marker Calum Chambers, turned the ball into the net past Wojciech Szczesny.
The Gunners, who desperately began searching for an equaliser, came close to getting the leveller after the break when Jack Wilshere fired a well struck effort from close range. However, Subasic came to Monaco's rescue as he brilliantly kept the ball out.
Arsenal thought that they were awarded a penalty after substitute Gedion Zelalem was brought down by Subasic in the box. However, referee Martin Atkinson, despite initially giving the decision in the Gunners' favour, changed his mind and awarded a free-kick instead.
The North London club continued searching for an equaliser, but Monaco managed to keep their calm and hold on to their lead.