The governing body of European football said two sectors of the Lazio stadium's Curva Nord (48 and 49) would be closed for the Italian club's next Europa League home game, which is scheduled against Porto on November 7th after the racist behaviour of some fans in their 4-1 win against Nice last week.
Lazio were also fined 45,000 euros (£37,680) for the infringement, which also came with an additional partial closure of the stadium for an extra game.
"Said partial stadium closure is suspended during a probationary period of one year," UEFA said.
Atletico were fined 30,000 euros that came with a suspended ban of selling tickets to their away fans for a UEFA competition match.
The probationary period is of one year.
Atletico fans showed "racist/discriminatory" behaviour in the side's 4-0 loss in the Champions League at Benfica last week.
Anderlecht were also banned from selling tickets to their away fans for their Europa League game at RFS in Latvia on November 7th after UEFA decided to enforce "the suspended disciplinary measure imposed... on 21st October 2022 for lighting of fireworks, throwing of objects, acts of damage and crowd disturbances."
