 Complete the following phrase:  In the 201617 UEFA Champions League quarter-final against Bayern in April, Ronaldo scored both goals in a 21 away win which saw him make history by becoming the first player to reach 100 goals in UEFA club competition. In the second leg of the quarter-finals, Ronaldo scored a perfect hat-trick and reached his 100th Champions League goal, becoming the first player to do so as Madrid again defeated Bayern 42 after extra-time. On 2 May, Ronaldo scored another hat-trick as Madrid defeated Atlético 30 in the Champions League semi-final first leg. On 17 May, Ronaldo overtook Jimmy Greaves as the all-time top scorer in the top five European leagues, scoring twice against Celta de Vigo. He finished the season with 42 goals in all competitions as he helped Madrid to win their first La Liga title since 2012. In the 