The Gunners are currently 13 points behind league leaders Liverpool and need a win tonight to delay the Reds from winning the title.
Ahead of the game, the club are without Merino and White. The latter is reportedly absent due to the birth of his first child.
There is no particular update on Merino, but reports claim that the Spaniard has probably been rested for the Paris Saint-Germain game.
The Gunners host PSG in the first leg of the Champions League semi-final on Tuesday and Merino should be a guaranteed starter.
With Thomas Partey suspended for the home leg, Merino could come into the midfield alongside Declan Rice and Martin Odegaard.
Leandro Trossard, who bagged his maiden brace for the Gunners last weekend, could play as the makeshift striker versus PSG.
We should get a fresh update on Merino after the derby.