The Chargers have been desperately looking to add weapons to the passing game and Alexander is being given a chance late in the season.
On Sunday against the Tampa Bay Buccaneers he started to prove his validity as a Week 10 fantasy sleeper. Alexander opened the game with an impressive 80-yard touchdown catch and will undoubtedly be a big part of San Diego's passing game moving forward.
So, let's update his fantasy outlook and analysis.
Heading into Sunday, Alexander had played in only two contests all season and caught only three passes for 61 yards and no scores.
However, the 6'5", 217-pound option has been waiting for a chance to emerge behind Robert Meachem. Constantly underwhelming, Meachem has just 12 catches for 189 yards and two touchdowns on the season.
His struggles have opened up a tremendous window for Alexander and fantasy owners should not be afraid to pounce on him.
San Diego is a competent passing offense and there will be plenty of chances for Alexander to make plays moving forward. Obviously the Buccaneers secondary does not provide a great test, but seeing him succeed against the league's worst unit is still promising.
Meachem is battling minor hamstring injuries anyway, so this may be a position battle that doesn't last long.
If you are sitting atop the waiver-wire heap be sure to make a play for Armstrong. His numbers to this point are underwhelming, but that is only because he has not seen the field much this season.
Alexander is building a solid chemistry with QB Philip Rivers and that relationship will continue to evolve as the season goes on. Meachem can continue fading into obscurity as Alexander, Antonio Gates and Malcom Floyd make up the bulk of the Chargers' passing game.
San Diego's remaining schedule is not particularly easy, but Alexander is a solid WR3 or Flex option moving forward.