The Eagles' other options are Brandon Hughes, rookie Jordan Poyer, and Shaun Prater. Hughes missed the opener with a fractured hand, but he practiced all week and wasn't listed on Friday's injury report.
"Luckily, we've got Brandon Hughes back, so we've got to see where Brandon is," Davis said Wednesday.
Hughes, now in his fourth year, has more experience than Boykin on the outside. If Boykin does start opposite Cary Williams, Hughes could replace him if the Eagles wanted to move him back inside in the nickel defense.
If Davis decided to keep Boykin strictly outside, Hughes, Poyer, Prater, or even safety Patrick Chung could play in the slot. The Eagles had Chung there during training camp with Nate Allen and Earl Wolff as safeties.
Boykin had perhaps the strongest camp of all the defensive backs, but Davis opted to start the longer Williams (6-foot-1) and Fletcher (6-0) on the outside. The coordinator has primarily had his corners play right or left, but he may allow Williams to shadow 6-foot-5 Chargers wide receiver Malcolm Floyd and have the 5-9 Boykin on 5-11 Vincent Brown.
While Williams had a strong start, recording an interception and sack against the Redskins, Boykin's first game was nearly as impressive. He snatched his first career pick, defended another pass, and notched six tackles.
"Last year was such a learning experience, especially with changing defenses in the middle of the year. It was tough," said Boykin, who was drafted in the fourth round out of Georgia. "But coming into this year, I knew how much I improved in [spring workouts]. I knew for a fact that I would get an interception in these first few games."
Early in camp, Boykin kept getting his hands on passes but couldn't pull any in. Every time he got his hand on a ball - even if it grazed his fingertips - he dropped and did push-ups as self-punishment.
"Anytime that ball is in the air, we try to make it a point that we're the receiver," Boykin said. "I'd rather have those drops in the preseason than in the regular season. I'm glad I got it out of the way."
Hughes had surgery to have a plate inserted into his hand after he fractured a bone in the third preseason game. The procedure allowed him to come back earlier than if he had allowed the break to heal naturally. The Eagles released him Saturday so that his contract wasn't guaranteed for the season and brought him back on Tuesday.
Poyer played 17 snaps Monday night, mostly after Fletcher left, and was defending receivers when the Redskins converted a key third down and scored a touchdown in the fourth quarter.
"I felt like they were definitely coming at me," Poyer said. "But that's what any smart quarterback or offensive coordinator would do. I knew . . . coming in that would happen, but there were a couple of mistakes that I made on that touchdown drive. But those are mistakes I can and will fix."
Prater, who was released by the Bengals after spending last season on injured reserve, appears to be at least one more game away from being available to dress.
"As soon as the system is picked up well and we see what we have, then he can be part of it," Davis said.
LeSean McCoy was named FedEx Ground player of the week for his performance in the Eagles' 33-27 win over Washington. The running back rushed for 184 yards and a touchdown on 31 carries.
Contact Jeff McLane at email@example.com. Follow on Twitter @Jeff_McLane.