Two Man Utd stars put on Ruben Amorim transfer notice ahead of Athletic Bilbao clash

Dimitar Berbatov has warned and that they are on borrowed time at - unless they start finding the back of a net before the summer transfer window.

Both Hojlund and Zirkzee, a summer signing from Bologna, have struggled to score regularly this season and head into the final weeks of the campaign with just four and three goals to their name respectively. Their fortunes in front of goal has fuelled speculation .

Liam Delap is to Old Trafford after plundering 12 league goals for .

United's goal struggles are a far cry from their heyday, where they scored goals for fun under . And reckons will only keep faith in his misfiring forwards for so long.

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Speaking to , the former United striker said: “Well, different time, different football, different players. United have been going through a difficult period in the Premier League, and especially even more so now that have won the 20th title, which obviously is a big disappointment for everybody connected to United.

“As for their striker dilemma, that will stay until either the current strikers start scoring goals regularly, or the new season comes and the manager decides his patience is no longer there with them, and maybe he’ll go for someone else.

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“Until the season finishes, I hope that whoever is given the chance to play up front can take this chance really seriously, because they need to know that when the new season comes, everything starts anew, the manager will have more time to prepare the team from the beginning.”

Hojlund's struggles in front of goal has seen the former Atalanta man linked with a return to Serie A this week. It's claimed that are interested in the Denmark international, who moved to United in a deal totalling £72million.

It remains to be seen if Hojlund would be given the green light to leave Old Trafford permanently but the club are looking to raise further transfer funds to give Amorim greater scope when it comes to rebuilding his playing squad.

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