The artwork underneath the Shepherdson Way bridge depicts the television text service’s full-time result from Boro’s victory in the 2004 League Cup final.
Boro’s triumph in Cardiff is the greatest day in the club’s history and led to a memorable first campaign in Europe.
Middlesbrough Mayor Chris Cooke said: “This is a brilliant reminder of a day that will always be special to Boro fans.
“I was really keen on making this happen as soon as the artist came forward with the concept. “It sits nicely alongside the artwork that celebrates Ali Brownlee’s famous commentary from the UEFA Cup semi-final and is another way of brightening up the area around the stadium. “I’m sure lots of fans will stop for a photo."
Middlesbrough Council commissioned the work from pixel street artist ZX.8BIT.
They said: “I’m grateful to the Mayor for his support and vision for helping to make this happen.
“As a lifelong Boro fan it means a lot to me to have my work on show next to the stadium where so many fans will see it."
