Ferreyra raced to retrieve the ball with Shakhtar needing to equalise to reach the quarterfinals and pushed the ball boy, sparking clashes.
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The Premier League leaders were keen on the Shakhtar Donetsk player in January but a deal was not completed.
Roma boss Eusebio Di Francesco said his side were waiting for Shakhtar Donetsk to "make a mistake" that would allow them to advance.
Shakhtar Donetsk fully expect star midfielder Fred to sign for either Manchester City or Manchester United next summer, the Ukrainian club's CEO said.
A second-half strike from Edin Dzeko sent Roma into the quarterfinals of the Champions League with a 1-0 home victory against 10-man Shakhtar Donetsk.
Shakhtar Donetsk has long been the jumping off point for talented Brazilians to debut in Europe, but sadly that project seems to be nearing its end.
City tried to sign Brazil international Fred during the January window but were unable to agree a deal with the Ukrainian club.
Shakhtar Donetsk pulled off a second-half comeback to beat Roma 2-1 in their Champions League round-of-16 first leg in Ukraine on Wednesday night.
Which eight clubs will make it through to the Champions League quarterfinals? Here are our writers' predictions.
Lucescu, now the Turkey national team manager, said Fred will follow in the footsteps of Fernandinho, who moved from Shakhtar to City.
Pep Guardiola has refused to comment about the possible signings of Aymeric Laporte and Fred.
Manchester City are considering a January move for Shakhtar Donetsk midfielder Fred in a bid to get a head start on their summer transfer business.
Manchester City hope to sign Shakhtar Donetsk's Fred before the close of the winter window. Transfer Talk has the latest.
Brazil international Fred has indicated that he would relish the chance to join Manchester City amid links with the Premier League leaders.
Man City already have a terrific Brazilian central midfielder in Fernandinho and Shakhtar's Fred could soon join him at the Etihad as his understudy.
Manchester City are monitoring Shakhtar Donetsk midfielder Fred ahead of a possible move in the summer, sources have told ESPN FC.
Bernard has opened the door on a move across Europe as he ponders his future with his Shakhtar Donetsk contract running out.
The draw for the Champions League round-of-16 has been made, and there's one clash that stands out as Neymar's PSG take on champions Real Madrid.
The business end of the Champions League starts here. The draw for the round-of-16 has been made, and there's a bunch of intriguing clashes.
Ties for the Champions League's round of 16 will be played Feb. 13, 14, 20 and 21 and March 5, 6, 12, 13.