Alexis Sanchez and Romelu Lukaku must both take their opportunity to impress as an injury crisis cuts through Manchester United’s squad, Ole Gunnar Solskjaer says. Romelu Lukaku and Alexis Sanchez have become bit part players at Manchester United but will get a chance to boost their hopes of a bigger role thanks to an injury crisis. (Photo: AFP/Lindsey PARNABY) Both players have struggled for form for much of the season, with Sanchez having started just one Premier League match in 2019, and Lukaku having gone 10 matches without scoring. The two forwards were heralded as major signings when they arrived at Old Trafford, but neither would now be considered an automatic starter. However, United’s squad is stretched to the limit as they prepare for Wednesday’s (Feb 27) Premier League trip to Crystal Palace, with 10 players either unavailable or doubtful because of injury. That list includes four frontline forwards, Anthony Martial, Jesse Lingard, Marcus Rashford and Juan Mata. Lingard and Mata both had to be substituted during the first half of Sunday’s 0-0 draw at home to Liverpool, while Rashford played to the finish despite an ankle injury caused by Jordan Henderson’s challenge early on. France forward Martial missed the…