By Jack Gallagher Manchester United have been one of the busiest Premier League teams during the 2024 summer transfer window, signing Joshua Zirkzee and Leny Yoro thus far. Having finished a disappointing eighth place in the Premier League last season however, it’s clear that there’s still plenty more work to be done in the market before the window shuts at the end of August. Here are four players Man Utd need to sign before the deadline. Matthijs de LigtAlthough Man Utd have already dipped into the defender market this summer to sign the prodigal Yoro, if you were one of the people unfortunat…