Betis are another team with two wins from two games after Nabil Fekir's penalty after 10 minutes and William Caravalho's powerful drive from outside the area eight minutes later gave the team from Seville a comfortable 2-0 victory against Valladolid and maintain new coach Manuel Pellegrini's perfect start.
"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.
The only down side for the capital-based team was that Renato Augusto limped off with injury as the Brazilian was suspected of suffering a muscular problem.
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.
The Hubs in the Middle East and Europe will focus on WTT Contender Series events, providing the platform for prospects to contend with some of the world's prominent names.
"It's great to play and to be back with my teammates. I return with a victory and a goal, so I am happy. We are getting our feeling back, our way of playing," the 21-year-old Mbappe said after the match.
The meeting also reiterated that all Games venues should be completed by the end of this year, safely and up to high standards.
Kalitvintsev remained in the thick of things after unleashing a free kick from 20 meters which forced Wolfsburg custodian Koen Casteels into action in the 51st minute.
"We will be announcing a new rival on the same date as soon as possible," the entity said in a separate statement.
The Rubronegro have remained in Ecuador ahead of Tuesday's clash in the Pacific port city of Guayaquil.
In a battle of former French Open champions, Romania's Halep beat Garbine Muguruza of Spain 6-3, 4-6, 6-4 to reach the women's final.