He started his career as a defender with Panetolikos but is better known for his many years with Olympiacos and the Greece national team in the 1980s.
He began his professional career with his local team Panetolikos in the 1975–76 season, making his debut in the Greek top division on 7 December 1975, two months before his 17th birthday.
With Olympiacos he won five championships, four of them consecutively (1980, 1981, 1982, 1983 and 1987), a cup (1981) and was also named captain of the team.
Following the end of his career Petros worked as manager for a lot of teams, mainly in the lower divisions with some good successes.
He began in 1994 when he managed his home team Panetolikos following his retirement as a player, where he was able to achieve promotion in the 1996–97 season to the Greek second division.