Joe Hart made a season-long loan move to Torino in the summer after being demoted to third-choice goalkeeper by new Manchester City manager Pep Guardiola.
Whilst Guardiola's number one Claudio Bravo has already made a number of high-profile errors, it's safe to say that Hart has endured both ups and downs since his switch to Italy.
After a slow start to the season, which included a costly mistake from the England international in a defeat at Atalanta, Torino have climbed to seventh in the Serie A table following just one loss in their last four games.
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On Saturday afternoon, they welcomed ninth-placed Cagliari to the Stadio Olimpico Grande Torino and raced into a 2-0 lead inside just 11 minutes thanks to goals from main man Andrea Belotti and winger Adem Ljajic.
However, with the score at 2-0 and hence the next goal in the game being key, Hart produced a disastrous blunder which very nearly squandered his side's two-goal advantage and offered the opposition a route back into the game.
As you can see in the video below, the 29-year-old goalkeeper mishandled a cross that was sent in from the left flank, and, as a result of his fumble, it needed goal-line technology to confirm that the ball hadn't crossed the line:
Luckily for Hart, he managed to scramble back in time to claw the ball off the line and, in the end, a rampant Torino team ran out huge 5-1 winners to move up to sixth in the league.
With the international break beginning next week, Hart will hope that this mistake, along with the one which led to Mauro Icardi scoring in a 2-1 win for Inter Milan, won't cost him his place in England's starting XI.
Is Hart still England's number one 'keeper? Have YOUR say in the comments box below!