Heat ends Halep’s run

World No. 2 Simona Halep retired with heat illness at the WTA Citi Open on Friday.

A day after complaining that severe heat left her feeling "a bit dead," French Open runner-up Halep quit her quarter-final match in even more scorching conditions, allowing Russian seventh seed Ekaterina Makarova to advance 2-6, 6-3, 1-0.

Top seed Halep broke Makarova three times to take the first set in 30 minutes, but the Russian battled back to win the second and broke Halep to open the third set when the Romanian said she could not continue.

Halep, who captured her 15th career WTA title in May at Madrid, is scheduled to defend her title next week at Toronto.