Chelsea boss Thomas Tuchel was left frustrated after their 1-1 draw with Brighton.
Substitute Danny Welbeck scored a dramatic stoppage-time equaliser for Brighton to deny Chelsea victory and deal a blow to their hopes of keeping pace with Manchester City at the top of the Premier League.
Chelsea looked set to move three points clear of fellow title contenders Liverpool when Romelu Lukaku marked his first top-flight start for two months by giving his side a lead, which they held until the 91st minute.
On a bad night for Chelsea, they also lost defenders Reece James and Andreas Christensen to injury.
Tuchel later barked: "Very frustrating and very disappointing because we had enough big chances. Another two changes because of injury. The players are completely exhausted and it is the same every match day. Horrible decisions not even checked.
"We have two injuries again. That's the point nothing else. Hamstring injury for Reece James. No need to look ahead to Liverpool- we can try to find players who can play. We have no more wing backs and everyone injured.
"We need to digest this and not talk about the next game."
He also rapped: "A draw about right? Absolutely not. We had the better chances and a clear penalty. Very disappointing.
"We are struggling but we have again two injured players. If the ref does not want to give us a penalty when it is a clear 100% penalty... The circumstances are against us. It's a 100% penalty.
"Our players are injured. I told you what would happen weeks ago. Same thoughts, I told you. Sure we are tired, if you had been in bed for 10 days and played Premier League matches after that, you would be tired."
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