New York Giants standout rookie wide receiver Malik Nabers is still in the “early stages” of the concussion protocol and missed Wednesday’s practice.

Giants head coach Brian Daboll said the team is taking a day-to-day approach with Nabers, the team’s top offensive weapon through four games. He will have to go through the five phases of the protocol in order to play when the Giants (1-3) visit the Seattle Seahawks (3-1) on Sunday.

Giants running back Devin Singletary (groin) also missed practice.

Nabers was injured late in last Thursday’s loss to the Dallas Cowboys.

With New York facing a fourth-and-6 from its 39-yard line and trailing 20-15 with 3 1/2 minutes to play in East Rutherford, N.J., quarterback Daniel Jones rolled left and found Nabers along the left sideline at the Dallas 35.

Trying to complete the reception and keep his feet in bounds while falling out of bounds, Nabers was unable to hold onto the ball. As he came down, his head hit the ground facemask-first. He remained on the ground for several minutes before heading to the blue medical tent. He was ruled out of the game with a concussion shortly afterward.

The No. 6 overall pick out of LSU in this year’s draft, Nabers has a league-high 35 catches for 386 yards and three scores in four games so far.

Singletary’s status is also in question for Sunday. He’s rushed 56 times for 221 yards and two TDs in four games. The Giants have gone six straight quarters without scoring a touchdown.

Giants cornerbacks Dru Phillips (calf) and Adoree’ Jackson (calf) also missed practice after missing the Cowboys’ game. Neither practiced at all last week. Daboll said both have “made progress.”

–Field Level Media