Celtic's four-year Scottish Cup reign came to an end at the hands of Rangers on Sunday.
Slavia Prague defender Ondrej Kudela has been banned for 10 matches for "racist behaviour" UEFA said on Wednesday.
Clarence Seedorf has suggested that football players should get yellow cards for covering their mouths to speak to opponents to combat racist abuse.
Swansea City and Rangers have announced that they will boycott all social media for a week in the fight against racism and online abuse.
Rangers' Glen Kamara said he has been subjected to online racial abuse every day since his confrontation with Slavia's Ondrej Kudela last month.
Slavia Prague defender Ondrej Kudela has been provisionally suspended for one game by UEFA for racially abusing Rangers midfielder Glen Kamara.
Police have arrested and charged a teenager over an alleged racist online post sent to Rangers striker Alfredo Morelos after the Old Firm derby.
Celtic were unable to halt Rangers' hopes for an unbeaten season in the Scottish Premiership as they played out a 1-1 draw in the Old Firm derby.
Rangers and Celtic did not take a knee ahead of the Old Firm derby on Sunday, following allegations of racism against midfielder Glen Kamara.
UEFA said on Friday it was investigating incidents in Rangers' Europa League clash with Slavia Prague after Glen Kamara complained of racial abuse.
By The Numbers brings you the best stats from the weekend's football action.
Rangers have won the Scottish Premier League for the first time in 10 years after Celtic failed to beat Dundee United on Sunday.