An early flurry of goals set the stage for a disappointing 5-4 loss to Nigeria by Japan on Friday morning in their opening match of the 2016 Rio Olympics.

The African side took the lead after just six minutes when Sadiq Umar took advantage of a poor clearance by goalkeeper Masatoshi Kushibiki, with overage selection Shinzo Koroki equalising from the spot just three minutes later.

Oghenekaro Etubo responded less than a minute later with a goal of his own, but Japan drew even again just a minute after that when Ryota Oshima assisted Takumi Minamino.

Etubo scored again shortly before halftime and twice more in the second half to complete the hat trick and give Nigeria a 5-2 lead.

But a 70th-minute goal by Takuma Asano and extra time strike by Musashi Suzuki made way for the final scoreline.

Makoto Teguramori’s men will have just three days to recover before facing Colombia, who drew 2-2 with Sweden earlier on Friday.