The Columbus defender slotted the ball in his own net to give Algeria a 2:0 lead after he attempted to clear a low cross.
The 2009 FIFA U-20 World Cup winner was substituted immediately after the error, an indication Milovan Rajevac was disappointed in the experienced centre-back. He was replaced by Reading defender Andrew Yiadom.
He could have done better by clearing the ball. Mensah probably took his eye off the ball as he directed it into his own net.
However, Mensah is a tough-minded player and is expected to recover from the setback and help the Black Stars achieve their target of winning the tournament in Cameroon.
⚽️🇩🇿 Le second but des Verts 👌🏾 #TeamDZ https://t.co/Y2s0dXWIG1
— DZfoot (@DZfoot) January 5, 2022
Meanwhile, the experience centre-back is heading to his seventh straight Africa Cup of Nations. He is a losing finalist twice and will be hoping this time he earns a gold medal.