Philippe Coutinho also has a lot to prove after his loan spell at Bayern, while questions remain over what style of play Koeman will look to impose.
The match was played behind closed doors at Bloomfield Stadium in Jaffa, the southern part of the coastal city of Tel Aviv-Jaffa.
The defender was then shown a direct red card in the 67th minute on the instruction of VAR for bringing down Luka Jovic when the striker looked to be through on goal.
Nobody will doubt Messi's commitment on the pitch, however, and he will again lead the side this Sunday in an attack which will probably also see Antoine Griezmann, who now has more responsibility following Suarez's departure, and Ansu Fati, who was virtually the only good news to come out of last season.
"From the start, we emphasized we would only see a return to international badminton if it was safe and logistically possible to do so. Therefore, for the past six months, we have been 100 percent dedicated to preparing for the safe return to international badminton," they said. Enditem
World number 12 Ding shared the opening four frames with Mark Allen, but took the following three in a row to seal a 5-2 win.
Iago Aspas scored twice as Celta Vigo won 2-1 at home to Valencia on Saturday night.
The controversial incident happened in Djokovic's last-16 clash at Flushing Meadows against Spain's Pablo Carreno Busta, as the Serbian smashed a ball in frustration which struck a line judge in the neck, causing her to fall to the ground.
The five-man leading pack started to wither after 27km. Duo was the first to fade away and Dong dropped back after 33km. Su and Yang Le broke away from Peng after 35km and the in-form Su managed to pull clear from Yang near 39km.
The 24-time Norway international follows Josep Martinez, Hee-Chan Hwang, Benjamin Henrichs, Lazar Samardzic and Angelino as the sixth new arrival of the summer transfer period.
The club has invited city residents and local businesses to have a say on the proposals which have already won widespread approval from fans.