Group E
Dinamo Zagreb 1-0 Chelsea
Chelsea began their UEFA Champions League campaign with a 1-0 shock defeat to Dinamo Zagreb at the Stadion Maksimir on Tuesday evening.
Thomas Tuchel handed a debut to Pierre-Emerick Aubamayeng as Wesley Fofana kept his place in the side after Saturday's win over West Ham United.
The Blues did not get off to a good start as Zagreb opened the scoring 13 minutes, with Mislav Orsic firing past Kepa Arrizabalaga, who was making his first start of the campaign.
While the hosts managed to carve out a few more chances and forced Kepa into a few saves, Tuchel's charges struggled to carve out any openings for Aubameyang.
Aubameyang's debut proved to be an unsuccessful one as he made way for Armando Borja on the hour mark, while Jorginho replaced Mateo Kovavic.
The Blues did have a big chance to equalise with four minutes left on the click when full-back Reece James rattled the woodwork with a powerful strike.
Group G
Borussia Dortmund 3-0 FC Copenhagen
Borussia Dortmund began their Group G campaign with a 3-0 victory over Danish giants FC Copenhagen.
Anothy Modeste started in the Dortmund attack that also included Thorgan Hazard, Julian Brandt and Salih Ozcan.
However, Dortmund coach Edin Terzic was forced into a first-half change as Hazard picked up an injury and was replaced by United States international Giovani Reyna.
The hosts did not seem disturbed by Hazard's absence, as they went on to grab the opening goal in the 35th minute courtesy of a strike from captain Marco Reus.
The lead was doubled on the stroke of halftime when Portuguese full-back Raphaël Guerreiro opened his account for the campaign after being set up by Reyna.
The third goal arrived in the 83rd minute, with England international Jude Bellingham rounded off the scoring from Reyna's second assist.
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