Damon Hill has tipped his former championship nemesis Michael Schumacher to soon quit Formula One.
The pair fought mercilessly for titles in the mid 90s - famously clashing at the 1994 Adelaide decider - and were never friends throughout the period until Hill retired in 1999.
When the Briton last raced for Jordan, he was 39.
"By then I was too old to go on," Hill told Italy's Motorinside. "After a certain age you're no longer able to be as fast or consistent, much less able to handle the pressure.
"Michael is now 42; in my opinion it's too old to be competitive, plus he doesn't have a car for the top positions. He can't go on like this for much longer," he predicted.