Villarreal travels after an easy 3-1 win at home to Alaves and with strikers Paco Alcacer and Gerard Moreno both in excellent form after netting six goals between them in Villarreal's first four games of the season.
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.
Thepchaiya Un-Nooh from Thailand won the other group on Saturday.
"It means a lot for me. I think I improved a lot in the past two years. I believe in myself that I can make something better than I was before," Giustino said.
As few as only six days remain for the Bavarian's sports-director to satisfy Flick's demands to fill up the gaps and provide satisfying answers.
Zidane is likely to bring either Isco or Luka Modric into his starting 11 to replace Kroos, although the doubt remains whether he will use a 4-4-2 with a midfield diamond formation that helped Madrid beat Betis at the weekend, or the 4-3-3 he fielded away to Real Sociedad in his side's league opener.
Paco Alcacer put Villarreal ahead after 12 minutes and although Edgar Mendez took advantage of a bad mistake from home keeper Sergio Asenjo 10 minutes before half-time, Gerard Moreno's VAR-assisted penalty allowed Villarreal to retake the lead on the stroke of half-time.
FC Barcelona has had an excellent start to the campaign and has looked much sharper and stronger under Ronald Koeman's guidance in their opening two matches. However, it will be without central defender Clement Lenglet on Sunday, with the Frenchman missing the match against his former club Sevilla after being sent off in Vigo on Thursday. Enditem
Roma, Paris Saint-Germain, Ajax, Bayern Munich and Wolverhampton Wanderers have also been linked with the attacker.
PARIS, Sept. 29 (Xinhua) -- World Number 1 Novak Djokovic dominated his first round match at the French Open on Tuesday, sweeping aside Sweden's Mikael Ymer 6-0, 6-2, 6-3 in just 98 minutes.
Fujian's form faded suddenly in the middle of the third set as Shanghai staged a 9-0 scoring run, including three points from serving. Shanghai then kept the huge lead until the set ended.