The 18-year-old scored Barca's first two goals himself, before winning a penalty that was converted by Leo Messi and captured rave reviews in the press.
Icardi found the target in each half thanks to two assists from French international Kylian Mbappe.
The Uruguayan came into the game as a 65th minute substitute with the score already 3-0 thanks to goals from Diego Costa, Angel Correa and the impressive Joao Felix.
"The question is how can you manage the club's return to the top eight of German football after a formative figure such as Clemens Tonnies has left," he said.
The Brazilian, who had entered the game as a substitute, took advantage of a loose ball to beat Valladolid keeper Roberto Jimenez with a diagonal shot.
Though both drivers were unhurt, the time needed to repair the extensive damage to the barriers meant that the race was not restarted, with the results being taken from the end of lap 5 and only half championship points being awarded.
FIFA and African governing body CAF had earlier sent condolences to the Ghana Football Association and the bereaved families. Enditem
Attracting around 300 of China's top swimmers, the 2020 Championships are being held from September 26 to October 2 in Qingdao.
Kenyan Peres Chepchirchir, the current half marathon record holder and Fancy Chemutai will also be in the frontline.
After the first defeat following 32 games without a loss, Robert Lewandowski's comment might draw the current picture of the 2020 treble winners' situation.
Naiman Banner, located on the edge of the Horqin Sandy Land, also China's largest sandy area, has organized three Naadam festivals of this kind. Enditem