McElhenney, known for his role in 'It's Always Sunny in Philadelphia', sent birthday wishes to Arthur Massey, a devoted supporter of Wrexham, on the occasion of his 100th birthday. It is the second successive year that McElhenney has wished the fan on his birthday.
On his 99th birthday a year ago, McElhenney, in response to a tweet from his daughter Julie Birrell, wrote: "Happy Birthday Arthur!! Let's celebrate 100 in the EFL!!!!"
And indeed, they were promoted back to the English Football League following a record-breaking season in the National League.