Sunderland have completed the signing of Belgium Under-21 international goalkeeper Simon Mignolet from Sint Truidense for an undisclosed fee.[LNB] Mignolet, 22, rose to prominence when helping his hometown club to a fourth-placed finish in last season's Jupiler League and was also chased by Dutch giants PSV Eindhoven.[LNB]But he opted for a move to Wearside where he will challenge Scotland number one Craig Gordon for a place in the starting XI.[LNB]The 6ft 4in stopper becomes manager Steve Bruce's second summer signing following the capture of midfielder Cristian Riveros, who is currently on international duty with Paraguay at the World Cup.[LNB]Bruce told the club's official website: "Simon is an excellent young goalkeeper and he has a lot more to offer. I'm sure he will push our current goalkeepers all the way next season.[LNB]"He is a player that we have watched on a number of occasions, as have a lot of clubs in Europe over the last couple of seasons.[LNB]"We're delighted to bring him to Sunderland. He'll come back ready for the start of pre-season training and will be looking to push for a place in the team."[LNB]Mignolet has signed a five-year contract and admits he was sold on the transfer after seeing the club's facilities.[LNB]"I am very proud to be here," he told SAFC TV.[LNB]"It is a great club with great supporters and a great stadium. I have seen it all and it was clear to me that I wanted to come here.[LNB]"I had a chat with the manager and the goalkeeping coach, and they told me what I can achieve here.[LNB]"The stadium, the facilities - everything about the club is massive. When you're a young kid like me it's impressive and I'm very happy to be here."[LNB]On the competition he will face to earn a starting berth at Sunderland, he added: "Competition is normal when you come to the Premier League. It is something you have to have in professional football.[LNB]"Of course I have to compete with other players and by doing that I will only get better.[LNB]"I am aware I'm only 22 and have a lot to learn. I think I can learn and progress in the time I am here."