The Lisbon derby is one of the most fiercely contested in the world but Sporting and Benfica meet on Saturday with even more than usual at stake.
That's because the two sides are top of Liga Portugal, level on 78 points with two games of the season remaining.
If the two teams are level on points by the end of the season then head-to-head record will decide the title winner, meaning Saturday could well be the day that decides who will be champions.
Everything to play for.
How one of Europe's fiercest rivalries evolved
- Published22 April 2022