West Ham have secured Premier League survival, while two from three will join Norwich in the Championship on the final day of the season.
Aston Villa and Bournemouth avoided being relegated from the Premier League on Tuesday night.
With Norwich already gone, two from four will join them with Watford, Villa and Bournemouth are not yet safe.
Watford were thrashed 4-0 at home by Manchester City, while Aston Villa beat Arsenal 1-0 to leapfrog the Hornets into 17th place.
Premier League relegation battle as it stands
| 16 | West Ham | 37 | 10 | 8 | 19 | -13 | 38 |
| 17 | Aston Villa | 37 | 9 | 7 | 21 | -26 | 34 |
| 17 | Watford | 37 | 8 | 10 | 19 | -27 | 34 |
| 18 | Bournemouth | 37 | 8 | 7 | 22 | -27 | 31 |
| 20 | Norwich (R) | 37 | 5 | 6 | 26 | -44 | 21 |
Watford
Watford held their fate in their own hands before Tuesday's games, but that disastrous 4-0 home loss to Man City - coupled with Villa's win - leaves them inside the drop zone by a point.
The Hornets face Arsenal on the final day, and must better Villa's result against West Ham. They trail Villa in the table by one goal, but Villa have scored more and conceded more - and that means Watford may have to put a few past Arsenal even if they do win.
Bournemouth
Bournemouth avoided being relegated without kicking a ball on Tuesday, but their situation looks bleak.
Eddie Howe’s side head to Everton on the final day of the season, and must while while also hoping that both Villa and Watford lose. Any other results will see the Cherries relegated.
Aston Villa
Villa have given themselves a fantastic chance of survival by beating Arsenal to climb into 17th position, and face West Ham on the final day.
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As long as Villa match or better the results of Watford and Bournemouth, they will be safe - and even a defeat might be good enough now.