Manchester United have been sent a warning about their Europa League semi-final second leg clash against Athletic Club.
The Red Devils have one foot in the Europa League final after a 3-0 win over Athletic Club in the first leg in Spain.
However, Ruben Amorim has warned United about complacency and urged his players to remain focused on winning the match at Old Trafford on Thursday evening.
Inaki Williams warned United that the Spanish side can come back in the second leg, although they will have to do it without him as both Williams brothers are out injured for Athletic Club.

Man United sent warning about Athletic Club comeback
United have announced a unique Old Trafford tifo for the second leg to try and ramp up the atmosphere for the second leg. Even with a three-goal advantage, this is a huge occasion for the Red Devils.
The entire season hinges on winning the Europa League so United cannot afford to relax and rely on their lead. They have been warned by former Tottenham and Athletic Club star Fernando Llorente that they could be in trouble if they do.
As quoted by Mundo Deportivo, Llorente said: “If Athletic Bilbao is able to give them a stifling and uncomfortable game well into the match, they go 2-0 up and score a third, then United will ultimately be screwed.”
He continued: “Go all out in Manchester because in football nothing is impossible and there have been bigger comebacks.
“They’ve shown throughout the season that they’re capable of anything.”
Llorente came through the academy in Bilbao before spending eight years at the club as a senior player. He went on to join Tottenham in 2017 where he spent two years in the Premier League.
Ruben Amorim has prepared for Athletic Club showdown
After a 3-0 win in Spain last week, Amorim took no risks with his team selection against Brentford, handing Chido Obi his first Premier League start as well as minutes for academy duo Harry Amass and Tyler Fredricson.
Key players such as Bruno Fernandes and Casemiro were rested ready for the second leg.
Amorim’s message throughout the week is that this tie is not over. United’s game plan on Thursday night will be to win in the 90 minutes and build up confidence ahead of the Europa League final.
Casemiro insists United must show “maximum respect” to their opponents, or they could end up paying the price.
Receive a digest of our best United content each week direct to your mailbox
