Tigres and Santos Laguna all square
Tigres Monterrey and Santos Laguna battled out a 1-1 draw in the first leg of their Mexican Clausura semi-final on Thursday night.
Jorge Estrada opened the scoring for the visitors after 62 minutes, only for Lucas Lobos to equalise seven minutes later for the defending champions.
The second leg of the second semi-final will take place on Saturday night.
Club America and Monterrey drew 0-0 in the first leg of the first semi-final on Wednesday.