wins and three losses. 2015: Struggles with form and return to a Grand Slam semifinal Ivanovic began her 2015 season reaching final of the Brisbane International. She lost one set against Kaia Kanepi en route. By beating Varvara Lepchenko, Ivanovic set up a final clash against Maria Sharapova, which she lost despite taking the first set in a tiebreak. Ivanovic entered the Australian Open as the fifth seed, but lost in the opening round in three sets to qualifier Lucie Hradecká, losing for the third time to a Czech player in her last four major appearances. She later revealed that she was struggling with a toe injury during the match. At her next tournament in Dubai, she lost just three games against Sabine Lisicki in the second round, but struggles continued as she lost to Karolína Plíšková in three sets. Ivanovic was the defending champion in Monterrey, but she lost Caroline Garcia in the semifinals. In Indian Wells, things didn't go better, as she lost two more times to Garcia in both doubles and singles. In Miami Ivanovic beat Irina Falconi in the second round in three sets before losing in the third round to Sabine Lisicki in straight sets. Ivanovic started her clay-court season with a third straight loss to Garcia in Stuttgart, where she was defending finalist points. Prior to the Madrid Open, Ivanovic parted ways with coach Dejan Petrovic. After two months, Ivanovic managed to win back-to-back matches, reaching the third round where she lost to an in-form Carla Suárez Navarro in three sets. She then played in the Italian Open and lost in the second round to qualifier and eventual semifinalist, Daria Gavrilova, in three sets after failing to serve out the match in the third set. Ivanovic entered the French Open as the seventh seed. In the first and second rounds, she came back from a set down to beat Yaroslava Shvedova and Misaki Doi, and with her third-round victory over Donna Vekić, Ivanovic reached 100 wins at Grand Slam events. In the fourth round, she beat Ekaterina Makarova in three sets, and in the quarterfinals, she beat Elina Svitolina in straight sets to advance to the semifinals of a major for the first time since she won the title in Paris back in 2008. She lost to Lucie Šafářová in two tight sets despite being up 5–2 in the first set. Ivanovic started her