Denis Shapovalov appears to have brought on Mikhail Youzhny as his coach on a trial basis.
The pair are both at the ATP event at Winston-Salem this week, where Shapovalov is competing.
WINSTON SALEM ATP 250: There has been a Mikhail Youzhny - the retired 37-year-old Russian who ranked as high as No. 8 in 2008 - sighting with Denis Shapovalov. It appears there may be some sort trial coaching relationship going on.— Tom Tebbutt (@tomtebbutt) August 19, 2019
The young Canadian has been through a few coaches in the previous year, and is 4-11 since Miami—three of those defeats were to Jan-Lennard Struff.
His ranking has dropped to No. 38 from a career-high of No. 20 following Miami.
Youzhny is a former top 8 player from Russia who retired in 2018. He has not previously worked as a tour coach.
Shapovalov is a wildcard and the tournament's second seed.