Leeds battled to earn a goalless draw with Aston Villa despite playing with only 10 men for the majority of the second half.
In a bad-tempered match, Colombia winger Luis Sinisterra was sent off after 48 minutes for two bookings - a foul on John McGinn and then blocking the ball when Douglas Luiz tried to take a quick free-kick.
Villa almost immediately took advantage of the extra player but Philippe Coutinho's volley bounced off the woodwork with England striker Ollie Watkins unable to convert the rebound.
The home side could have won it late on when substitute Patrick Bamford forced a fine save from Emiliano Martinez, with the Argentine also saving Brenden Aaronson's follow-up.