on 2 february 2015, riga returned to standard liège in belgium, where he was re-appointed as manager following ivan vukomanović's departure. he took charge of his first game on 6 february 2015, a league match against royal mouscron-péruwelz, which ended in a 3–0 win for standard. towards the end of the season, riga announced he would not be prolonging his contract with standard. slavoljub muslin was announced as his successor on 5 june 2015.