Mikel Arteta admitted Arsenal are lacking a “spark” after his goal-shy players drew another blank.
Arsenal fell further behind leaders Liverpool and the title race looks all but over with Arteta’s failing to find the net for the second game running.
Gunners boss Arteta said: “It doesn’t feel good.We tried until the end but weren’t able to do it."
Kai Havertz and Gabriel Jesus are out for the season while Saka and Martinelli are still on schedule to return after the international break.
Arteta added: “Gabby and Bukayo have been out for a long time so we cannot rush it.Maybe Gabby is just ahead of Bukayo but we will have to find solutions and work with what we have.
“But there is a lot left in the season and there is a lot to play for.The only thing we can do is win our matches and see how many points we get."
Forest boss Nuno said: “We played well. For more news relating to Arsenal, visit our sister site AFC Latest Live.