Before their players do battle in Japan on Tuesday, Barcelona and Chelsea clashed on social media in the build-up to their friendly.
Chelsea's official Twitter account had posted a video of their Champions League semi-final triumph over Barcelona.
During that game, the Blues, captained by Frank Lampard after John Terry's sending off, came back from two goals down to reach the final, with Fernando Torres sealing progression in stoppage time.
"Is this a throwback to when you guys were playing in the Champions League?" Barcelona's account cheekily replied.
Chelsea haven't played in the Champions League in two of the last three seasons and were knocked out by Barcelona during the 2017/18 campaign.
Jameszeboss
180
2009 cl semi final. Chelsea dominated barca. Should’ve got 5 penalties. Barca scored 1 goal in the 90+ minutes to go through on away goals. The most unfair and disgraceful matches ever played.
Soudikr
125
Chelsea is the only team in English premier league that can deal with Barcelona thank God I'm Chelsea fan