Coventry City suffered their third straight 0-0 home draw at St Andrew's as they took a point off promotion-chasing Stoke City.
In a game of few on-target efforts, it was a third successive away goalless draw for Michael O'Neill's Potters.
Stoke midfielder Jordan Thompson went close either side of the break, hitting the bar with the second of his two attempts.
Striker Steven Fletcher could have earned the visitors all three points but was twice wide with good headed chances, first when Nathan Collins headed a deep free-kick across goal and then from Tommy Smith's cross.