Career
Drohan made his debut for Fitzroy in 1898 and played in their premiership side that year and the following season. In both Grand Finals he played on a wing, the position he occupied for most of his career. After retiring in 1908 Drohan spent a couple of years as a field umpire before joining Melbourne as coach in 1910.
He had little success, winning just four games for the season and in 1911 he was chosen to coach Street Kilda.
Again his side struggled, this time winning just two games. Later Drohan also acted as a goal umpire and a steward.