Botswana's Tebogo won the Olympic 200m final last year, with it emerging after the race that Lyles, who came third, had tested positive for Covid. Tebogo went into the race in Monaco having set a world leading time of 19.76 seconds when he won the 200m at the last Diamond League meeting in Eugene on July 5.
Olympic 100m champion Lyles had not raced since a 400m run in April and had last competed over 200m 338 days previously.
Sweden's Armando Duplantis won the men's pole vault with 6.05m but missed out in his attempt at adding a centimetre to the world record height of 6.28m, while Emmanuel Wanyonyi, of Kenya, set a world-leading 1:41.44 in the men's 800m.
Dutchwoman Femke Bol impressed in the 400m hurdles with a world-leading 51.95 as she beat Americans Dalilah Muhammad, who was second in 52.58, and third-placed Anna Cockrell (52.91).
The next Diamond League event will take place in the United Kingdom for a sold-out London Athletics Meet on July 19. The finals will take place in Zurich on the August 27 and 28 of just over a fortnight before the start of the World Athletics Championships in Tokyo, Japan.
--ChannelAfrica--