Justine Henin and Kim Clijsters -- two Belgians making Wimbledon comebacks -- won in straight sets to set up Monday's fourth-round showdown. Clijsters, seeded eighth, beat No. 27 Maria Kirilenko 6-3, 6-3 Friday. Henin, seeded 17th, defeated No. 12 Nadia Petrova 6-1, 6-4. Second-seeded Venus Williams beat Alisa Kleybanova 6-4, 6-2 to reach the fourth round as well.
