Wizards All-Star guard John Wall is considered questionable for Friday night's game against the Brooklyn Nets due to a migraine headache, CSN has learned.

Wall did not participate in Friday morning's shootaround, an abbreviated practice to the team picture being taken. He will be re-evaluated pregame on Friday night to determine his status.

Wall, 26, has played in 69 of the Wizards' 71 games this season. He was held out of two games earlier in the year due to a minutes restriction stemming from his two knee surgeries in May.

Migraine headaches can be minor, but they can in certain instances be enough for players to miss games. Nic Batum of the Hornets just last week missed two games due to migraines and underwent a brain scan before returning to the lineup.

The Wizards can clinch a playoff spot on Friday night with a win over the Nets and a loss for the Pistons against the Magic. Washington also has plenty on the line in terms of playoff seeding, sitting in third place and just a half-game ahead of the Toronto Raptors.

The Wizards have a very difficult road trip up ahead. It begins on Saturday night against the Cavaliers as part of a back-to-back set. 

A four-time All-Star, Wall is averaging 22.9 points and 10.8 assists per game.

[RELATED: Morning tip: What has changed for Otto Porter?]