Complex sentence: First event she played on clay was in Marrakech, where she lost in first round to Maria-Teresa Torro-Flor, although leading 3--0 in their head-to-head.
Split into simpler sentences: First event she played on clay was in Marrakech. She lost in first round to Maria-Teresa Torro-Flor, although Bojana led 3--0 in their head-to-head.