Complex sentence: At the last tournament of her season, the BGL Luxembourg Open, she surprised the second seed and No.15 player in the world Anastasia Pavlyuchenkova in the first round which was the second win of her career over a Top 20 player.
Split into simpler sentences: At the last tournament of her season, the BGL Luxembourg Open, she surprised the second seed and No.15 player in the world Anastasia Pavlyuchenkova in the first round. That was the second win of her career over a Top 20 player.