Read the following paragraph and determine if the hypothesis is true:

William Middleton Grant (born 14 November 1904, date of death 24 September 1994) was a Scottish professional footballer. He spent eight years at Blackpool in the early 1900s, making over 200 Football League appearances for the club. He played as a defender.

Hypothesis: William Grants was injured during his professional career.
It's impossible to say