Andre Schurrle admitted Chelsea's failure to beat inferior teams has cost them the Premier League title this season after Sunday's goalless draw with Norwich City.
Jose Mourinho's side needed a win at Stamford Bridge to remain in the title hunt but another home setback has left the Blues relying completely on other results.
Schurrle, 23, came closest to breaking the deadlock in Chelsea's final home game of the season when he struck the post with a low shot, but was left frustrated by his side's inability to break down the Canaries.
"We played very well against the big teams - Liverpool, Man City, Man United and Arsenal - but at home you have to win against teams like Sunderland and Norwich," Schurrle told the club's official website.
"We didn't do that and that's why we won't win the league this year.
"We're disappointed, we wanted the win so much. It was our last match at home, and with a win, we still had hopes for the title.
"Now, we are third and we'll probably stay there."