Chicago Bears receiver Alshon Jeffery received another accolade Friday to honor his breakthrough 2013 season. Jeffery was chosen by the Pro Football Writers’ Association as the league’s Most Improved Player. Jeffery will head to the Pro Bowl later this month, replacing Detroit’s Calvin Johnson in that game following a season in which he recorded 89 catches, 1,421 yards and seven touchdowns. Those totals were major spikes from his rookie campaign in 2012 when he had 24 grabs, 367 yards and three TDs, missing six games due to hand and knee injuries. The PFWA also announced its Comeback Player of the Year on Friday, honoring Chargers quarterback Philip Rivers with that award. Rivers completed 69.5 percent of his passes this year for 4,478 yards with 32 TD passes and only 11 interceptions.