Captain John Terry has urged his Chelsea team-mates to heed the wake-up call presented by their 1-0 FA Community Shield defeat to Arsenal.
The Barclays Premier League champions were sluggish as their London rivals, through Alex Oxlade-Chamberlain's 24th-minute goal, recorded a rare victory against them.
The winger's powerful finish was Arsenal's first goal against Chelsea in 506 minutes, and ended the Blues' eight-match unbeaten run against them.
Terry remained adamant that they were the superior side and refused to dismiss the fixture as a friendly and hoped the defeat would ensure that they were better prepared.
"There was a trophy on the line,"…