Complex sentence: Pouille entered the Australian Open having not played any tournament in the first two weeks of 2018 prior to the Australian Open; this proved fatal for Pouille (seeded no.18) as he lost to Belgian qualifier Ruben Bemelmans in the first round.
Split into simpler sentences: Pouille entered the 2018 Australian Open having not played any tournament in the first two weeks of 2018 prior to the Australian Open. This proved fatal for Pouille (seeded no.18) as he lost to Belgian qualifier Ruben Bemelmans in the first round.