Will Keane scored five times as Manchester United Under-21s thrashed Norwich Under-21s 7-0 – but the result was soured after Adnan Januzaj limped off with a hamstring injury.
Januzaj, who recently returned from a loan spell with Borussia Dortmund, pulled up just before the half-hour mark clutching his hamstring and limped off shortly afterwards.
Uruguyan full-back Guillermo Varela, who made his senior debut against West Ham in December, was also forced from the field later in the half after appearing to injure his ankle.
Senior stars Memphis Depay, Phil Jones, Sergio Romero and Andreas Pereira joined Januzaj in a strong United starting XI but it was Keane who grabbed the headlines.
The 22-year-old striker was recalled from a loan spell with Preston North End last month as Louis van Gaal looked to increase his striking options behind Wayne Rooney and Anthony Martial.
Keane will have caught the Dutchman’s eye with his five-goal haul on Monday night, with Pereira also getting on the scoresheet from the penalty spot and substitute Timothy Fosu-Mensah adding another.
England defender Jones played almost an hour as he continued his recovery from ankle ligament damage sustained in a win over Swansea in January.
Keane opened the scoring in the 13th minute when Pereira picked him out in the box and he fired beyond Matthews to break the deadlock.
Later in the half, Memphis found Keane lurking at the back post and he tapped into an empty net to double his tally.
The duo combined again for United’s third just after the break as Keane bagged his hat-trick and it was quickly 4-0 after Pereira slotted home a penalty following a handball by Norwich in the box.
Keane’s fourth came just after the hour mark and it was the pick of the bunch as he beat two players on the edge of the box with some neat footwork before executing an audacious chip over Matthews into the far corner.
Fosu-Mensah got in on the scoring act when he broke down the left before slipping the ball under Matthews and Keane completed the scoring when he slotted home after a good ball from James Weir put him in.