Making 7 appearances and scoring one goal in his first season, he later had a short spell with FK Rīga, returning to Liepāja in 2002.

[1] Grebis had his contract with Oxford United cancelled by mutual consent in March 2007, as this period of his career was not the best.

[2] Later on he joined FK Ventspils, but in 2008 came back to his home land team Liepājas Metalurgs.

After four days on the squad, the club may have used a ruse of undiagnosed heart problems found during the medical tests.

Grebis played 9 matches for Daugava, marking 1 goal to his name, before joining FC Jūrmala in July 2013.