Tottenham's Harry Winks has said that Lionel Messi is the greatest player ever and has "completed football" after witnessing the Argentine's genius at close quarters on Wednesday.
Messi produced a sublime performance as Barcelona beat Spurs 4-2 at Wembley, playing the defence-splitting passes for the opening two goals before scoring twice himself, while also hitting the post twice.
For Winks, the 31-year-old has reached the top level possible.
"The result isn't what we wanted and it takes away a lot of the excitement and enjoyment of the game," he said. "But in years to come when I look back and say I played against, in my opinion, the greatest player to ever play football, it's a proud moment.
"The only way I can really describe it is he's just completed football. The man just knows where everybody is. His weight of pass is exceptional. He's just special. But everyone has said that for years. Everyone who has played against him has said the same thing.
"For me, it was a special moment to play against a player like that. But it's always disheartening to lose the game. I'm gutted.
"I learnt a lot from it. I'll watch the game back, I'll dissect my game. There were times when I gave the ball away sloppily, which wasn't good enough. But I'll learn from that and ultimately I'll just try to improve my own game.
"Rubbing shoulders with players like [Ivan] Rakitic and [Sergio] Busquets is always a good lesson. You're talking about players who have played at the highest level for many years, so to play against them, it's special. You pick up things they do and it's nice to test myself in those situations."
Spurs fell behind after less than two minutes at Wembley and found themselves 2-0 down at the break. They twice got back within one goal in the second half, making it 2-1 and then 3-2, but Messi's 90th-minute strike ended the contest, leaving Mauricio Pochettino's side with two defeats in Group B.
"I think in the first half we probably showed them a little bit too much respect," Winks said. "We sat off them a little bit too much, let them play and get into their rhythm. In the second half, we just fought, we went for it and gave it everything. It shows that when you do that you can put a team like Barca on the back foot and get a result.
"In some respects, the second half can be good for us to be the benchmark for our games in the Champions League now.
"If we can go out there and press on the front foot, show aggression, get in the opposition's face and make them scared, then why can't we go to the Nou Camp and get a result, and why can't we qualify for the next round of the Champions League? There's all to play for and we believe we can do it."
Meanwhile, Fernando Llorente has said Barcelona are the favourites to win the Champions League.
Llorente, who replaced goalscorer Erik Lamela in the 79th minute of the game, told Cadena Ser radio that it will be hard for any team to stop Barca.
"If Barca play as they have against us, it will be difficult for anyone to beat them," he said. "This game was very important for us but Barca played a great game and deserved the win."
Llorente also hailed Lionel Messi, who scored twice at Wembley and received wide praise for his performance.
"I've seen a great Messi, with a lot of hunger," Llorente said. "He was impressive not just with the ball but also defending. You could see that he was very, very well."
Atletico Madrid manager Diego Simeone labelled Antoine Griezmann "the best player in the world" after he scored twice in a 3-1 win over Club Brugge on Wednesday, but Llorente disagreed and reserved praise for Messi and teammate Harry Kane.
"I haven't seen anyone have the level that Messi has on anyone," he said. "Harry proved he is one of the best strikers in the world.
"He scored a fantastic goal when we were down, 2-0. Thanks to him, the team believed it was possible. We did try, we all rowed in the same direction but it was not to be."
Information from ESPN FC's Adriana Garcia was used in this article.