Haas next for Djokovic

Rafael Nadal and Novak Djokovic remain on course for a semi-final meeting at the French Open.

This after both winning in the Roland Garros fourth round on Tuesday.

Nadal beat Kei Nishikori 6-4 6-1 6-3, while Djokovic ousted Philipp Kohlschreiber 4-6 6-3 6-4 6-4.

Djokovic will meet German veteran, Tommy Haas, in the quarter-finals.

Nadal has a quarter-final date with Stanislas Wawrinka.

Maria Sharapova also won in the fourth round in Paris yesterday.

Sharapova beat Sloane Stephens 6-4 6-3.

The Russian will face Jelena Jankovic next.

They are due to meet on Wednesday.

Serena Williams is scheduled for quarter-final action today.

She will be up against 2009 French Open champion Svetlana Kuznetsova.

Roger Federer is also on the Tuesday menu.

Federer will play Jo-Wilfried Tsonga in another quarter-final assignment.

(File Photo:Gallo Images)

- Andre Bloem

Twitter - @SportswaveAndre @ECRSportswave