After his three-game goal drought in the Premier League, Manchester City phenomenon Erling Haaland silenced his doubters once again with a brilliant brace in his side’s 5-0 thrashing of Sparta Prague. Haaland scored one of his best-ever goals to double City’s lead — getting on the end of an inviting cross from Savinho to finish the move in acrobatic style. The Manchester City striker looked like he was in the mood to add to his goal tally on Wednesday night — rounding off a slick counter-attack from the hosts by cutting in on his right foot and dispatching the ball into the back of the net. Af…