Barcelona youngster, Lamine Yamal was substituted from the toilet in the second half of Barcelona Champions League match against FC Porto.

Barcelona traveled from to Portugal as Porto hosted them for their second Champions League group stage match. The La Liga Champions got a hard fought win to have all possible 6 points from the two matches played.

In the second half of the match, Barca had to endure playing with just 10 men for an unfamiliar reason.

16-year-old winger, Lamine Yamal left the pitch, rushing through the tunnel in the 71st minute headed for the toilet. Xavi men had to play on with 10 men waiting for the return of Yamal.

Yamal however spent an excessive time taking a shit leaving Xavi with no option than substituting him. He had to be substituted in the 80th minute with Marcos Alonso filling in for him.

Barcelona went back to 10 men after Pablo Gavi was sent off in added time after receiving a second yellow.

Barca are top of their group with Porto in second place.