#3 Flop: Marcal
Lyon conceded five on this occasion, after a hard-fought clean sheet three weeks ago, so it'd be easy for me to pick out Jason Denayer - who gave away the penalty early on - as the visitors' chief flop.
Instead though, the Belgian recovered well from his needless mistake and despite being kept busy, dealt with danger just as he did in the first leg. It was actually the performance of experienced defender Marcal which stuck out for all the wrong reasons throughout. Other than a recovery clearance to deny Messi what would have been his hat-trick, the 30-year-old was poor and shaky.
The only starting center-back for either side not to register a completed tackle, he made three interceptions, one clearance and block - but committed two fouls, got booked just after the half-hour mark and thus was playing on a tightrope for nearly an hour.
Often caught ball-watching or in the wrong position at the wrong time, he struggled for composure and that allowed Barca's front line to target spaces in-behind him. While Denayer rose after his mistake, Marcal looked vulnerable and knew he couldn't make another poorly-timed challenge in order to avoid being sent off.