Sunderland have confirmed the signing of ENPPI defender Ahmed Al-Muhammadi on a season-long loan.The 22-year-old Egypt international has 42 caps and boss Steve Bruce also has the option to make the deal permanent at the end of the season. [LNB]"His pace and direct style will be an asset to us and give the team an extra dimension," Bruce said. [LNB]"He is already an experienced international, which will serve him well as he adjusts to life." [LNB]Bruce added: "I expect it will take him time to settle but Ahmed is a player who can have a big impact in this division and we welcome him to the club." [LNB]Al-Muhammadi, who began his career with hometown club Ghazl El-Mehalla, made his first team debut at the age of 17 before moving to Cairo-based ENPPI in 2006. [LNB]He becomes Sunderland's third signing of the summer, after goalkeeper Simon Mignolet and midfielder Cristian Riveros.