Oleksandr Usyk will have the knowledge of Wladmir Klitschko when he heads into his battle with Tyson Fury next month.
Undisputed glory will be at stake for both fighters as they meet in Saudi Arabia on May 18 with all four world titles up for grabs.
Klitschko, a huge supporter of Usyk, is fully aware of what it takes to step into the ring with Fury when he lost to the Brit in 2015.
Fury was too good for the Ukrainian as he became world champion for the first time in Germany with a safety-first performance that frustrated Klitschko.
Usyk has now confirmed that Klitschko has given him advice ahead of his own fight with Fury, but he hasn't revealed the details.
“Wladimir has given me advice, but now it’s secret,” said Usyk when speaking to Seconds Out.
Will Klitschko’s experience against Fury be enough to help his fellow countryman?
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