Lincoln City and Blackburn Rovers played out a goalless draw at the ProAmpac Stadium in a Championship matchday-four contest short on clear-cut chances.
Blackburn's Tom Atcheson was booked for a foul in the 12th minute and picked up a second yellow, also for a foul, in the 68th, reducing the away side to ten men for the rest of the match.
Lincoln's Conor McGrandles was booked for a foul in the 93rd minute. Blackburn substitutes Jake Garrett and Adam Forshaw were also cautioned for dissent, in the 84th and 94th minutes respectively.
Lincoln made five substitutions: two at the hour mark, a third in the 76th minute and two more in the 86th. Blackburn made four changes, including Ryan Alebiosu forced off with an injury in the 90th minute.