Oakland Raiders wide receiver Martavis Bryant has made his way back to the practice field Wednesday after being away from the action the last two days due to migraines, according to a report by Matt Schneidman of the Mercury News.

It has previously been noted that Bryant has suffered the condition for years, but headaches are not the only thing that is giving him troubles of late. Bryant is reportedly having an underwhelming training camp in Oakland, with Raiders head coach John Gruden even going as far as to publicly underscore his disappointment of the veteran wide receiver's effort on the field during practices.

Gruden, however, showed some love for Bryant when he called the wideout “a great talent” last week, via Scott Bair of NBC Sports.

When healthy and is 100 percent focused, Bryant could be a devastating threat downfield for the Raiders. He's currently behind Jordy Nelson and Amari Cooper on the team's pecking order, but Bryant can expect quarterback Derek Carr to feed him consistently, especially if he gets it together during practices and in preseason games.

With Martavis Bryant back, the Raiders can send him to the field this coming Saturday, when the team takes on the Los Angeles Rams in a preseason game away from home.

Bryant became a Raider last April after the Pittsburgh Steelers shipped him to Oakland in exchange for a 2018 third-round pick.