"Nigeria have very good players, fast players, you can't give them space".
"We had a hard time (in qualifying), but we had our moments", Messi said.
Messi was coaxed back into the fold and produced a hat-trick against Ecuador as Argentina only made the finals in Russian Federation by winning their last qualifier, and he does not believe the current group will be afforded another opportunity to win silverware in the Albiceleste jersey.
Barcelona forward Messi, who is captain for both club and country, chose to retire from global football past year after the 2016 Copa America final loss to Chile.
Messi's side will kick off their World Cup campaign against Iceland on June 16, before they face Croatia and Nigeria in their other group-stage fixtures. As we are today, we are not far from that although there are better teams than us such as Brazil, Germany, France and Spain.
"But it's true that we need to improve if we want to be world champions".
"I never went over the previous finals".
"I would have to review them to see what we did wrong so we didn't them".
Higuain was left out of Jorge Sampaoli's squad for Argentina's final two World Cup qualifiers against Peru and Ecuador in October, but the Barcelona star feels the Juventus striker is still important to the national team. "We don't feel that way".