Manchester United's 2-1 loss at home to Swansea City on Sunday, Jan. 5, was made all the worse by Fabio's five-minute cameo for the hosts. The Brazilian received his marching orders within just five minutes of coming on as a second-half substitute.
On the 80th-minute mark, the left-back lunged into a late tackle on Jose Canas, missing the ball entirely and catching nothing except the Spaniard's shin.
Footage was posted on Twitter by @Football__Tweet (h/t Squawka):
United were then forced to play the last 10 minutes with just 10 men, handing Michael Laudrup's men the opportunity to go on and claim an 89th-minute winner through the perseverance of Wilfried Bony.
Fabio was understandably eager to show his talents considering this was the 23-year-old's first senior appearance for the Red Devils since October.
However, that eagerness rapidly transpired into callous over-exuberance, costing his side their run at one of the major domestic titles that would have undoubtedly been in David Moyes' sights.
That being said, the home side lacked the same bite that they exhibited in their 4-1 thumping of the Swans earlier this season, crashing out of the competition as a result of their profligacy in attack at Old Trafford.
The Independent's Sam Wallace summarised the dour mood at Old Trafford:
Prior to the red card, United had enjoyed a majority of the shots on goal and a larger chunk of the attacking pressure for some periods.
However, as BBC Sport shows, the match ended with Swansea having snapped at their opportunity in the dying moment, ending with 10 shots at goal compared to the hosts' seven.
It was a disappointing end to what Moyes would have hoped to be a happier occasion, marking Swansea's first ever win at the Theatre of Dreams.
Despite not having a great wealth of first-team experience with the English giants, this wasn't Fabio's first sending off either; the youngster was shown a red in a 2009-10 League Cup match against Wolves.
In terms of first-team impact, Fabio's absence won't have a dramatic effect at Old Trafford, but it's bound to turn Moyes' opinion of the defender, who may find playing minutes more difficult to come by for the foreseeable future.