Shoot down a stinger????

Has anyone got the book “Su 25 Frogfoot in action” by signal publications?
I bought a copy the other day ( I love this series because they’re cheap!) and it contains this following statement:

“One of the greatest Grach pilots was Senior LT Konstantin G. Pavlyukov, who at the time was only 23. During a mission in December of January 1986, Pavlyukov managed to shoot destroy two stingers launched against his formation. He shot down the first with a burst from his AO-17A cannon, while the second was shot down by a salvo of unguided rockets…..”

Now I would imagine the flight time of a stinger, from launch until detonation would only be a few seconds, so how could it be possible to shoot down TWO?

I have a number of books written by Hans-Heniri Stapfer and they seem to be well researched. Has anyone heard this claim before? Does anyone believe this is even possible?

BALMAIN.