'The GOAT of all GOATS': Sports world celebrates Serena Williams
Serena Williams' career likely came to a close Friday night
three-set loss to Ajla Tomljanovic in the third round of the U.S.
Despite the setback
the 40-year-old's brilliance was on display once again
she's perhaps the greatest tennis player of all time.
The emotion showed for Williams after the match,
especially when she began thanking her family.