The pair were rested for Thursday’s Europa League game with PSV Eindhoven, which Arsenal lost 2-0, but starts today.
Arsenal have also been successful in Ben White and Gabriel, although the latter was spotted hobbling off the pitch on Thursday night.
Thomas Partey enters midfield for Albert Sambi Lokonga to join Granit Xhaka and Martin Odegaard.
Arsenal will be looking for a reaction after losing to PSV and seeing Manchester City overtake them on Saturday.
Team news confirmed
Arsenal: Ramsdale, White, Saliba, Gabriel, Tomiyasu, Odegaard, Partey, Xhaka, Saka, Gabriel Jesus, Martinelli
Replacements: Tierney, Nketiah, Holding, Cédric, Vieira, Sambi Lokonga, Nelson, Alencar, Hein
Nottingham Forest: Henderson, Aurier, Cook, McKenna, Renan Lodi, Yates, Freuler, Kouyate, Gibbs-White, Awoniyi, Lingard
Subs: Worrall, Mangala, Williams, Hennessey, O’Brien, Surridge, Johnson, Dennis, Boly
Sunday 14:00 GMT
Venue: Emirates Stadium
Arbitrator: Simon Hooper
The Arsenal team of: Huh, Ramsdale, Turner; Cedric, Gabriel, Holding, Saliba, Tierney, Tomiyasu, White, Zinchenko; Lokonga, Odegaard, Partey, Saka, Vieira, Xhaka; Jesus, Martinelli, Marquinhos, Nelson and Nketiah.
Injured: Elneny (hamstrings), Smith Rowe
Doubts: Gabriel, Zinchenko (calf)