Defeat to Italy on Saturday (AEST) condemned England to relegation in the UEFA Nations League, extending its winless streak to five matches in the process.

Southgate was jeered by England's travelling supporters at San Siro but, despite being under the most pressure he has been in his six-year stint in charge, believes he remains the best choice to take the team to the FIFA World Cup.

"Without a doubt. We're playing and have been playing some top-level sides and we will be better for that," he said.

"And the younger players, in particular, that have been in these games will have learned a lot from them.

"In the past we've had runs of friendlies or whatever the matches are and then we've gone into tournaments and that's the first time we've hit high-level opposition and it's hit us in the face quite often.

"Now we know the level, now we know what we've got to improve and we'll be better placed for that by having had the quality of matches that we've had."

Southgate's views were echoed by England captain Harry Kane, who is confident the Three Lions will be back to their best in time for the start of the FIFA World Cup in November.

"I believe we are going to be judged on how we perform out in Qatar. We're just in one of those moments where it's not quite going our way. We're confident we can turn that around," he stated.

"We have one more game on Monday to try to get some good feelings back. Ultimately, once we get to the World Cup, we will be ready for that first game and be fully focused on that.

"I don't think our confidence has been dented, but you want to win games. We are all experienced enough, with our clubs especially we have been through those moments when things haven't been going so well. It's about bouncing back."