Jules Kounde, Ronald Araujo, Frenkie De Jong and Memphis Depay have sustained injuries while playing for their countries.
Browsing: Frenkie De Jong
The 29-year-old has moved back to the Old Lady following his release from the Reds last month.
Barcelona have announced their signings on free transfers.
Erik ten Hag coached the 25-year-old at Ajax and feels the midfielder will be an important part of the rebuild he is undertaking at Old Trafford.
Romeu also hinted star talents such as Frenkie de Jong could be allowed to leave if their departures would allow Barca to strengthen Xavi’s squad.
Bernardo attempted to leave City last summer, but no adequate offers arrived.
Barca entered the game on a three-match winless run in all competitions, having been held by Granada following a last-gasp equaliser before consecutive Cup defeats after extra-time.
The Catalans picked up their first silverware of the season and gained revenge for their Spanish Super Cup defeat by Athletic Bilbao in January with a convincing victory
The Brazilian, who was ruled out of the game PSG eventually won 4-1 through injury, took exception to a penalty awarded to his former side after Frenkie de Jong was judged to have been clipped by defender Layvin Kurzawa,
Dutch midfielder De Jong arrived at the far post to meet a Messi cross and score on the volley in the 27th minute to deservedly give the visitors the lead after a rampant start.
His comments came after his side earned an underwhelming 3-1 win over Gimnastic de Tarragona in a pre-season friendly on Saturday.
Goals from Fati, Frenkie de Jong, Gerard Pique and two from Luis Suarez gave Barca their second win of the season
The Germans went ahead with Serge Gnabry, netting his fourth goal in four qualifiers in the ninth minute
Dutch midfielder Frenkie de Jong says FC Barcelona have urged him and his Ajax Amsterdam teammates to knock the Catalans’ historic rivals Real Madrid out of the UEFA Champions League.
The 21-year-old has put pen to paper on a five-year deal at the Nou Camp after interest from a host of top European clubs, including Manchester City and PSG.