"One can't understand it," Flick said when criticizing UEFA's decision to choose the venue and allowing up to 20,000 spectators.
Bologna went a player down in the dying minutes as Mitchell Dijks saw red after his second yellow card for getting a fistful of Alexis Saelemaekers' shirt. Enditem
Arrascaeta doubled the visitors lead by holding his ground while under pressure from Damian Diaz and then nonchalantly lofting a shot over Burrai that went in off the underside of the crossbar.
Uruguay will meet Chile in Montevideo and Argentina face Ecuador in Buenos Aires in other opening day fixtures.
There is also a slight doubt over Martin Odegaard, who returned from loan from Real Sociedad over the summer and was in the starting 11 to face his former club a week ago.
The league debut comes after another difficult week, which followed a complicated summer in the wake of Barca's 8-2 thrashing to Bayern Munich in the Champions League. That defeat saw Quique Setien sacked as coach and replaced by Koeman and led to a clear out of the dressing room, which has so far seen Ivan Rakitic, Arturo Vidal, Arthur Melo, Nelson Semedo and Luis Suarez all leave the club.
"As always, your encouraging words and support meant the world to me and I look forward to getting back on the court and competing for Canada next year," the 20-year-old added.
"Bryan Reynolds has flourished whenever he has gotten an opportunity," the club's president Dan Hunt said in a club statement. "He has a bright future and we're thrilled that he'll continue to grow with us at FC Dallas and at the national team level."
"It's really a tough and close match," said spiker Zhang.
‘The feeling I got when skiing was a kind of happiness which I hadn’t felt in a long time.’
Elsewhere, Osasuna central defender Aridane Hernandez has a muscle injury and will miss their return to their remodeled El Sadar Stadium to take on Levante, while both Eibar and Athletic Club look for their first win of the season in their rescheduled lunchtime kickoff.