Maurizio Sarri urged Juventus to show less naivety on the ball after Adrian Rabiot's late lapse led to a 3-2 loss to Tottenham in Singapore.
The Serie A champions succumbed to defeat in Sarri's first match in charge courtesy of Harry Kane's sublime lob over Wojciech Szczesny from inside the centre circle in the third minute of added time.
New signing Rabiot dallied on the ball and invited a tackle from Lucas Moura, from which the ball spilled into Kane's path, allowing him to score what he described as "probably one of the best goals in my career".