The Italian champions, Udine and Fiorendina, are set to compete with each other for the last Champions League spots with the Italians also being in contention for the Europa League, the Italian Football Federation (FIGC) announced.
The Italian giants, who are battling it out with Napoli and Inter Milan for the top two spots, will both compete for the Champions League.
The Serie A champions Udine, who won the league in 2013-14, are currently in the second division.
The side also missed out on the Champions Leagues in 2013, 2014 and 2015 and finished in last place in the 2016-17 season.
Fiorestina, meanwhile, were relegated in the top flight in 2016 and were relegated again last season, having finished sixth in the league last term.
The latter, who finished eighth in the Serie A table, will face Udine in the Champions Trophy for the third successive time.
The Italian side finished fourth last season.