In an effort to drill it into his players that recent results are unacceptable, Gigi Del Neri organised a surprise double training session on Tuesday.
The players arrived at Vinovo thinking that they would train just the once, but when the first session ended he told them that no one would be leaving until 17:00.
Juventus had a quick breakfast, trained for an hour and a quarter, showered, then had lunch and another one and a half hour session.
Such an eventuality has already happened three times this season, but it was the first time Del Neri gave such late notice of the arrangement.
Pavel Nedved and Fabio Paratici attended the morning session. They were joined by Giuseppe Marotta in the afternoon.
Del Neri is under pressure after Juventus suffered back-to-back defeats to Lecce and Bologna.
The Old Lady is down in seventh place and qualification for the Champions League is at risk.
Think you know your Italian football? Share your knowledge, tips and comments to win cash prizes in OLBG's tipster competition  - £5,000 monthly.