Alex Rae raved about Rangers on Twitter after their win against Maribor.
Barisic has signed a four-year deal at Rangers under Steven Gerrard.
Steven Gerrard’s Glasgow Rangers won against NK Osijek, with Gers striker Alfredo Morelos scoring for the Ibrox club.
Rangers progressed into the next round of Europa League qualifying on Tuesday evening.
Alex Rae believes Sunderland can win the League One under Jack Ross next season.
Scott Brown has criticised the Scottish FA for trying to hamper Celtic's treble chances.
Sunderland are on the lookout for a new manager but one candidate is not too popular.
Sunderland are still on the lookout for their next manager as three new names have reportedly entered the fray.
Wilder looks set to remain at Sheffield United despite alleged interest from Sunderland.
Rangers kept their second-place hopes alive with a draw at Pittodrie.