The 29-year-old joins Tommy Dunne’s side for the 2015 season having lined out for Limerick last year.
The centre-back has a wealth of footballing experience having played with clubs such as Birmingham City, Leyton Orient and Tamworth, amongst others.
Speaking to galwayunitedfc.ie, Oji said he was glad to finally have the deal ‘done and dusted’.
“It’s been going on for a while now and a few things came up in the off-season, but I’m glad to say it’s finally done and dusted and I’m ready to go now.”
“There were a few young boys coming through the ranks at Limerick that I helped and it’s the same here in Galway,
“If I can help them in any way, I will and I’ll be actively looking to do that. I did quite well last year at Limerick, I formed a bond with a Galway boy Stephen Folan and he’s gone on and done well for himself, so hopefully I find another person to do that with at Galway United.”
Oji went on to say,
“My mantra is still to try and be the best in the division, I wanted a new challenge to keep the fire in my belly and continue the level of performances that I’ve put in for the year and half I’ve been playing in Ireland.”
Galway boss Tommy Dunne now has 20 players to choose from with just two weeks until Galway’s league campaign kicks-off against Derry City in Eamonn Deacy Park on the 6th of March.
Dunne was quick to note the experience Oji will bring to his generally young squad.
“It’s important for everybody at the club, for the squad and supporters that we brought in experience and that we brought in somebody who would be regarded as one of the top central defenders in the country.
“I think it was needed to boost the squad and we’ve got a lot of young players, so we need some men and some guys with that experience to be able to help them through, especially in the Premier Division.
“We’re absolutely delighted that Sam has come in, hopefully he can strike up a partnership with whoever it might be at the back, Stephen Walsh is there at the moment but we’ve hopefully got another body to come in, Kilian Cantwell who’s injured at the minute, as well as Andy O’Connell, so we have a lot of options and with Sam coming in now it should help the guys push on.”
Rob Lyons, Pundit Arena