Striker Bi Jinhao scored a brace in the first half to seal the win for the Shanghai side in the last round of the first CSL phase.
The side coached by Diego Martinez had kicked off their campaign with league wins at home to Athletic Club and Alaves, while also getting through two Europa League qualifying rounds, with a 4-0 victory away to Albanian outfit, Teuta and a 2-0 win at home to Locomotive Tbilisi a week ago.
However the Argentinian giants paid the price for the absence of a cutting edge in attack, registering their second draw from five matches in this season's campaign.
Diaz is a stylish right-sided defender, who is comfortable on the ball and should complement the left-footed Aymeric Laporte in the Manchester City defense. He already has international experience after forming part of the 2018 Portugal World Cup squad.
"I really wanted to give an effort here. It's my Achilles that didn't have enough to properly heal after the [US] Open. I was able to get it somewhat better, but just looking long-term in this tournament, will I be able to get through enough matches? For me, I don't think I could," said the three-time Roland Garros champion.
"He is taking his medical test and he still has to sign his contract," commented Koeman, who said that although he would "rather not talk" until the youngster had put pen to paper, "we are going to have a young full back. He will have to compete with other defenders, but he is young and has played in the Champions League and I am certain he will be very useful."
Autuori led Botafogo to six victories, 13 draws and four defeats after taking charge of the two-time Serie A champions for a fifth time in February.
Midfielder Tony Kroos was confirmed to have torn his left gluteus maximum muscle on Monday and will miss Wednesday's game and the following weekend's trip to face Levante in Valencia.
The 22-year-old Croatian center (2.16m) has played NBA basketball for four seasons, the first three of them for the Phoenix Suns that selected him as a fourth overall pick of the 2016 draft.
Jiangsu built an unsinkable 8-2 lead before it took the first set 25-16 and then won the second 25-11.
Pliskova's best record at a Grand Slam was in 2016 US Open where she lost to Angelique Kerber 6-3, 4-6, 6-4 in the final.