Viral illness knocks Karolina out, Kristyna replaces her in field.
The Romanian wants to help Romania achieve glory in women's tennis.
The Spaniard was the man of the hour tonight at the Argentina Open.
Three-time Grand Slam champion reveals why he's ready to rise.
The American will be out for a while after suffering a finger injury.
American No. 1 will continue wearing Fila apparel and shoes.
Viral illness knocks former No. 1 out.
