Novak Djokovic was all smiles in his press conference after suffering a shock defeat at Indian Wells, but former pro CoCo Vandeweghe believes he was 'smiling too much'

Djokovic hit 15 winners, made 37 unforced errors, and won just seven of those 24 points on his second serve. Van de Zandschulp had his way in the neutral rallies. Does any of this have to do with a new, possibly more conservative approach that his coach, Andy Murray, has recommended? We’ll need to see more from them before making that judgment.