Southgate said England had failed to work out how the visitors had changed their approach at halftime, something that might cost them dearly if repeated in Russian Federation.
"I think we played really well with the ball especially, created a lot of good chances, far more good situations than we've had in recent games".
Iwobi's goal was Nigeria's first against England in three games while the Three Lions keep their record of not losing to an African side. If we can combine those together in the ideal way then we can go far.
"Nigeria are one of the few teams that could actually handle his pace but I thought he was very bright and his movement was good".
'But after that we dealt with it well.
Both players did not feature in the 2-1 defeat to England in a friendly affair in London on Saturday, meaning Rohr had chose to chop them from the squad before the encounter.
"What that did mean is that there was a little lift in the game that we had to cope with and manage, and that was a decent exercise for us to adjust to that".
"We need him (Ndidi) but we had a protocol from Leicester and my friend Claude Puel, who gave me very good information with the medical team", Leicestershire Live quoted the 64-year-old as saying on Sunday.
But former midfielder Chris Waddle believes the Three Lions' performance shouldn't excite fans ahead of this month's tournament.
"Now, we are trying to play other systems and I think we are going to get much better".
That comes against Costa Rica - also Russia- bound - at Leeds on Thursday night.
The second time was a group phase tie at the 2002 World Cup in Korea/Japan.