Leicester City and Doncaster Rovers are goalless at the King Power Stadium at half time.
In what is his final game before retirement, Kevin Phillips almost made the breakthrough when David Nugent's deflected shot headed his way, but he could not turn the ball in.
Nugent once more came close to finding an opener when played through by Danny Drinkwater, only for Sam Johnstone to deny the striker his 20th league goal of the campaign when he pulled off a fine save.
The hosts continued to push and Riyad Mahrez's towering header almost undone Doncaster, yet the ball whistled just over the crossbar.
