"Swervin' Mervyn" was the man back in my day. He was one of those guys like Moon and Wake who had a good career in the CFL and then a good career in the NFL, he sometimes gets forgotten about when mentioning folks who accomplish that feat.
From Wikipedia
Fernandez spent his entire 6-year NFL career (1987-1992) with one team: the Los Angeles Raiders. During that span, Fernandez played in 86 games and amassed 209 catches for 3,764 yards and 19 touchdowns. While Fernandez never made the Pro Bowl, he did leave his mark on the Raiders’ record books. His 209 career catches are 10th most by any receiver in Raiders’ history. His 3,764 career receiving yards ranks him number 8 all-time. His 18.01 average yards per catch for his career is first among any receiver to wear the Raiders' Silver and Black. In 1988, Fernandez led NFL receivers in average yards per catch (26.0).
Arguably, Fernandez's finest year was 1989, when he made 57 catches for 1,069 yards and 9 touchdowns, leading all Raiders’ receivers in almost every major category, and becoming only the sixth Raider to gain over 1,000 receiving yards in a season.