Justin Langer believes opening batsman David Warner allowed Stuart Broad to “get into his head” during the Ashes series, which ended in a draw at the Kia Oval on Sunday.

Australia coach Langer was left feeling “hollow” after losing the final Test, ­having retained the Ashes Urn at ­Headingley.

Warner failed twice at the Oval, falling for a seventh time to Broad from round the wicket in the second innings. At least on that occasion he made it to double figures (11) for the second time in a series that saw him score just 95 runs in 10 innings and slide 24 places in the ICC’s Test batting rankings. After 13 Tests in England, Warner averages 26 without a century.

Langer does not believe Warner’s game has deserted him and expects the 32-year-old to retain his place at the start of the Australia summer. However, he was troubled by Warner’s approach to a clear issue during the series.

He said: “David had an IPL where he was the leading run scorer, he had the World Cup where he was the leading run scorer but I think, talking frankly, he let Stuart Broad get into his head and he thought way too much about it.

“I’ve seen it before, even with the great players. Every now and then they have a series — and I’m talking about the all-time great players — where [they fail].

“Even great players have lean runs and David — we know he’s a very good player, there’s no question about that — had it tough, particularly against Stuart Broad.

“He’ll probably be very relieved when he gets on the Qantas flight in a day’s time and doesn’t have to face Stuart Broad for a while. But there’s plenty of upside still to his batting.

“I’ve learned over a long period you never write off champion players, it doesn’t matter what sport. They tend to come good, don’t they? So he’s had a tough series, no doubt about that, but he’s also a champion player so usually with champion players they get a bit more time to come good.

“He had this series, it didn’t go to plan, but we’ve seen how successful he’s been and the impact he can have on Australian cricket teams winning, so I’m confident he’ll come good. Actually, I’m hopeful he comes good.”

Langer accepted that Australia failed to win the series because “we didn’t bat well enough”, saying that only Steve Smith (who made a remarkable 774 runs), Marnus Labuschagne and ­Matthew Wade, who made his second century of the series at the Oval, were up to the mark.