Ukraine coach Oleksiy Mykhailychenko has tapped up Andriy Shevchenko for information on England players ahead of the World Cup qualifier.
Shevchenko endured two miserable years at Chelsea where he struggled for goals - but it has given him a wealth of knowledge to supply Mykhailychenko with, particularly on John Terry, Ashley Cole and Frank Lampard.
"We had a conversation with Andriy and he gave characteristics of certain players," Mykhailychenko said.
"The more information you have the more chance you have to choose the right tactics. His knowledge has helped me.
"Shevchenko, who has been at AC Milan this season, and Andriy Voronin both have points to prove when they face Fabio Capello's men.
Voronin was surplus to requirement at Liverpool this season and loaned out to Hertha Berlin, but he is determined to prove he is worthy of a return to Anfield at the end of the campaign.
"I would love to come back to Liverpool, not as number five or six or to sit on the bench or to watch the match," the 29-year-old said.
"I would like to come back to play. There are certain offers, I'm going to discuss them with my agent and take it from there."
Shevchenko and Voronin are out to dent England's hopes of reaching South Africa next year.
The hosts have a 100% record so far in qualifying but Ukraine are also unbeaten, although they dropped points against Croatia.
Mykhailychenko enjoyed success as a player at Rangers, winning five titles, and defeating England would please Scotland fans as well as Ukraine's.
"When I played in Scotland it was so many years ago that I find it difficult to recognise my former team-mates," the Ukraine coach said.
"Of course I know about the rivalry between England and Scotland but that is not the key issue, the game is about Ukraine and that will give me the most joy and satisfaction."
Mykhailychenko revealed his total respect for Capello but feels even the Italian coach learned from former Ukraine boss, the late Valeri Lobanovsky.
"I have deep respect to the Italian school of coaching," he said.
"I also feel the Italian coaching has been significant in the development of world football. But even Italian coaches, like Marcello Lippi, will admit they learnt from Lobanovsky.
"Of course, following after a great coach was horrendously difficult because fans always compare, maybe they expect some sort of repeat but there are no repeats in football."