Chelsea manager Frank Lampard says Liverpool had an advantage in the UEFA Super Cup final on Wednesday.
The Reds won the clash on penalties after Adrian denied Tammy Abraham's spot-kick.
Jurgen Klopp's side played last Friday and the Blues faced Manchester United on Sunday, and Lampard says the two-day gap made a difference in Istanbul.
He said: "For us to play away in Manchester on Sunday evening and for Liverpool to play at home on Friday evening, with two days more recovery this early in the season, it clearly affects your preparation and was an advantage to them.
"You wouldn't have known it with the way we played because we kept going for 120 minutes but it's unfortunate for a game of this level and importance that there's two days extra recovery and preparation for one team over another.
"I don't want to sound like I'm moaning - we didn't lose the game because of that but it was a bit frustrating."
