El Sayed played with El Zamalek for 13 seasons during which he dominated the left wing position. At the end of 2007-2008 season and after winning the Egyptian cup, El Zamalek did not include either Tarek or his teammate Besheer El-Tabei in the new season's team roster, and so both were free agents.
Itesalat
Shocked to be abandoned by his former team, he moved to Itesalat. He stayed at Itesalat for only half a season and scored 2 goals.[2]
Tersana
In January 2009, El Sayed agreed to move to Tersana to help the team avoid relegation to the second division. El Sayed scored 2 goals[2] for Tersana by the end of that season, but the club was eventually relegated. El Sayed announced that he would transfer to another team; however, when his transfer to either El Geish or El-Entag El-Harby did not materialize, he decided to retire.