Marco Alexandre Saraiva da Silva (born 12 July 1977) is a former Portuguese footballer who played as a right back, and the current manager of Greek club Olympiacos FC.

His career is mainly associated to Estoril, as a player and manager. He also coached Sporting for one season, winning the 2014–15 Portuguese Cup.

Playing career

Born in Lisbon, Silva finished his formation with local C.F. Os Belenenses. During a 15-year professional career he only appeared in two Primeira Liga games, one with that club and another with S.C. Campomaiorense; from 2000 to 2005 he alternated between the second and third divisions, representing C.D. Trofense, Rio Ave FC, S.C. Braga B, S.C. Salgueiros and Odivelas FC.

In the 2005 off-season Silva joined G.D. Estoril Praia in the second level, where he remained until his retirement six years later, always in that category.

Silva played his last match on 2 January 2011, a 0–1 home loss against F.C. Penafiel for the campaign's League Cup. He retired in June at the age of nearly 34, amassing division two totals of 152 games and eight goals for three different clubs.