Pulled hamstrings, carried-over suspensions, lack of fitness - all common reasons your new signing might have to wait to make their debut. But what about a shirt that is too tight?
Non-league side Coalville Town were "delighted" to welcome big target man Kyle Perry to the Leicestershire-based club on Thursday.
However, it quickly dawned on those at the Ravens that getting the 6ft 4in striker to 'fit in' would be more than just a technical football question - it would potentially need a tailor.
Such is Perry's physical presence that the Southern League Central Premier Division club didn't have a shirt big enough for the 32-year-old to wear against Banbury United on Saturday.