UEFA punishes Shakhtar Donetsk, Lazio for fan racism
Shakhtar fans displayed a far-right banner at a home game against Eintracht Frankfurt in February.
UEFA says both clubs must shut stadium sections at their next home game in European competition.
Shakhtar, which has a seven-point lead in the Ukrainian league, is likely to play in the Champions League group stage next season.
Lazio is currently sixth in Serie A and could enter the next Europa League. UEFA also fined Lazio 20,000 euros ($22,500).