2019 Riga Masters
... that several entrants in the 2019 Riga Masters professional snooker event—including the defending champion—missed the tournament because their flights were cancelled?
... that several entrants in the <b id="mwBsc"><a href="./2019_Riga_Masters" id="mwBsg" rel="mw:WikiLink" title="2019 Riga Masters">2019 Riga Masters</a></b> professional <a href="./Snooker" id="mwBsk" rel="mw:WikiLink" title="Snooker">snooker</a> event—including <a href="./Neil_Robertson" id="mwBso" rel="mw:WikiLink" title="Neil Robertson">the defending champion</a>—missed the tournament because their flights were cancelled?