One is a chatty 18-year-old long tipped as a future Grand Slam champion.
The other is a straight-talking 53-year-old former Wimbledon winner, who has also coached another top player to the title.
Together, Mirra Andreeva and her coach Conchita Martinez are forming a successful double act which they hope will lead to the Russian teenager also lifting the SW19 title.
"Bringing in Conchita has definitely helped me improve," Andreeva, who plays American 10th seed Emma Navarro in the last 16 on Monday, told BBC Sport.
"It helps she is an ex-player and has been a Wimbledon champion.