"We controlled the ball better, which is why we got the second goal".
"When James came on, which I knew would happen, the team defended as a whole, rather than just a player marking him", said Nishino.
Japan became the first-ever team from Asia to defeat a Southern American squad in a World Cup game, after three draws and 14 defeats.
But the Argentine-born Pekerman lauded the "Cafeteros" (Coffee-makers) for holding their own after the expulsion and scoring an equaliser in the first half thanks to Juan Quintero's clever low free kick in the 39th minute.
Akira Nishino was only appointed as Japan coach in April, replacing Vahid Halilhodzic during a tumultuous build-up to their World Cup campaign.
Juan Quintero's clever low free-kick in the 39th minute brought Colombia's equaliser, but Yuya Osako leapt above his marker to head a corner into the net for the 73rd-minute victor. "How we played on Tuesday gave us a vision of what Columbia can do", Columbia's all-time leading goal scorer Falcao added.
Senegal and Japan also impressed with respective victories over Poland and 10-man Colombia in Group H.
"We made enough prep work before the game and it worked well. No excuses for someone that destroys a World Cup opener".
Japan and Senegal are the feel-good underdog stories of the FIFA World Cup 2018 with their performances against Colombia and Poland respectively. The Lions of Teranga were able to take advantage of an own goal by Thiago Cionek and then put the match away late when M'Baye Niang found the back of the net.
Japan and Senegal face each other in a Group H match on Sunday, June 24.
Moments later, Skomina ordered both teams to change sides, after which the match began.
The score was opened in the first half of the match by Senegal's Thiago Cionek (37th minute).
A hard round-of-16 game awaits against (probably) one of Spain or Portugal, but would you want to play a rampant Russian Federation at the moment?