Govin’s arrival will be a huge boost for the Bulldogs following the departure of Kyle Wood.
Eagles have two injury fears ahead of the Northern Rail Cup quarter-final clash at Mount Pleasant.
Coach Mark Aston said: “We have to check on the two during the week.”
Aston wants the squad to put behind them last week’s poor performance against Keighley.
He said: “It’s a Cup game and we were very disappointed by our performance against Keighley. We had a few hard words about that after the game and at training this week.
“We have to be a bit more respectful in the things we do, and that’s where our focus has to be. We are a quality team that can win games.”