What Lionel Messi ate from his sock during Barcelona 3-1 Olympia kos

Lionel Messi scored his 100th European goal on Tuesday night to help Barcelona secure a 3-1 victory over Olympiakos at the Camp Nou.

The 30-year-old, who has been in magnificent form for club and country this season, made it 2-0 in the 61st minute after Dimitrios Nikolaou’s unfortunate first-half own goal put the home sides ahead.

Lucas Digne then made it 3-0, thanks to an assist from Messi, while Nikolaou made amends for his own goal by netting a consolation for the visitors shortly before the full-time whistle was blown.

"I hope he reaches 200 goals this season!" Barça coach Ernesto Valverde joked, per ESPN, when asked about Messi’s latest landmark.

"His numbers validate what we see every day, he's beating statistics that seemed impossible. He's been doing it for a long time now, constantly breaking down barriers."

WHAT MESSI ATE FROM HIS SOCK IN THE 10TH MINUTE

Valverde was also asked about a bizarre incident involving Messi in the 10th minute.

The Argentine superstar, who inspired his country to World Cup qualification last week, took something out of his sock and ate it, leading to speculation on social media as to what he’d consumed.

It’s now emerged, courtesy of Catalunya Radio journalist Ricard Torquemada, that it was a glucose tablet.

Torquemada, per Sport, added that Messi took the tablet at the moment because "before the first 15 minutes of physical effort is when the muscles are most receptive."

Before anyone gets concerned, it’s perfectly normal for athletes to take these types of tablets, although we rarely see it happen during matches.

VALVERDE GIVES HIS REACTION

"I don't know if he took a glucose tablet," Valverde responded when asked about the incident in his post-match press conference. "If it made him score a goal, then he should take a load of them... But I do know the players do take glucose."

WHY MESSI TAKES GLUCOSE TABLETS

Catalunya Radio also added, per MarcaMarch, that Messi is known to rely on glucose pulls to control the nausea he occasionally suffers before and after matches.