BATE are underdogs for the match but Argentine midfielder Mascherano insists that his side should take a cautious approach.
"When we play the lesser known teams then things can quickly become complicated for us," Mascherano told the press.
"[BATE] normally do well at home and we must not underestimate them.
"We never [underestimate teams], but we want to play to our strengths so we can try to get a good result."
BATE drew their opening group match with Viktoria Plzen 1-1.