Barcelona captain Andres Iniesta was left frustrated after their 1-1 draw with Real Madrid.
The midfielder returned from injury in the second half of Saturday's blockbuster match after a seven-game absence, but the late equaliser denied him a happy return.
"I feel bad at the moment because the most recent thing to happen is the equalising goal," the 32-year-old said after the full-time whistle.
"But besides that moment at the end of the match, I think we did enough to deserve to win."