Former Manchester United centre-back Gary Pallister believes it would require a "minor miracle" for United to win the Champions League this season.
Pallister, who played for United between 1989 and 1998, made the admission ahead of his former side's first-leg clash with Atletico Madrid in the last-16 of the Champions League at the Wanda Metropolitano Stadium.
United, who last won the Champions League in 2008, progressed to the last-16 as Group F winners, finishing just one point ahead of second-placed Villarreal.