Six changes for Palace from the weakened team that lost 2-0 at Manchester United. One of them sees the influential Yannick Bolasie return to the starting XI. Emmanuel Adebayor is on the bench.

Troy Deeney and Odion Ighalo return to Watford's attack with the Hornets making eight changes from the 3-1 defeat by West Ham.

Image source, Reuters

After a season of two halves (first good, second bad) Watford aren't threatening the top half of the table but they won't be going down.

Barring something terrible happening to them in the next three league games, Palace's top-flight campaign will end with them disappointed but safe.

For both, the FA Cup represents the last remaining chance to forge something truly memorable from what has been an increasingly difficult season. The warm blanket at the end of a 26.2 mile slog. 

Sticking with the marathon analogy, neither wants to be the one who runs out of steam with the Mall in sight.

Image source, Getty Images

Right lads, this is your season here. One game. 90 minutes. In front of 90,000 people. At the home of football. Win and you get to come back for something potentially career-defining, lose and you'll probably remember it bitterly for the rest of your life. 

No pressure.