Martinez would have been a better choice for Manchester United but it happened that the better choice was not the available option so they had to shift focus to Lammens and just as expected they were able to complete the deal before deadline while Martinez stayed back at Aston Villa.
Yeah, that was the ideal goalkeeper signing Ruben Amorim wanted but the decision of Sancho not joining Aston Villa a hundred percent made Manchester United go all in for Lammens. I'm glad he came. He is not just better than Andrea Onana at the moment statistically, but also better that Martinez. I'm sure he will have a quick impact against Manchester City next week during the Manchester derby.