Doncaster Rovers manager Paul Dickov believes that his side were not clinical enough as they lost their opening Championship fixture 3-1 to Blackpool at home.
The hosts managed to fight back from a first-half Steven Davies goal with Rob Jones equalising on the hour mark, but two further strikes condemned Rovers to defeat.
"The biggest disappointment was the goal we conceded from a set piece at 1-1. We had worked hard to get back into it," Dickov told reporters.
"I thought we played well but it goes to show this is a tough league. You have to be more clinical."
Doncaster's next league game is against Blackburn Rovers on Friday, August 16.