There was a time when and were considered the next star quarterbacks of the NFL. The new - rivalry. It hasn't worked out that way with the gun-slingers heading in opposite directions. has gone to back-to-back s, while is being booed by the ' faithful at home. To make matters worse for Kap, opponents are letting the Niners quarterback know he isn't on Ivica Zubac Jersey Wilson's level.TV cameras on the Fox broadcast during Sunday's game in San Francisco picked up sound of linebacker shouting at Kaepernick: "You ain't , bro."Matthews' shade happened during the fourth quarter of the . The All-Pro linebacker also performed Kaepernick's trademark ki s of the bicep after a sack in the third quarter.It's no surprise that Matthews came at Kaepernick hard. Kap did torch the during the 2012 divisional round of the playoffs when he rushed for 181 yards and threw for 263 yards. He also had a similar performance against the to open the 2013 season.Times are rough for the 1-3 Niners and Kaepernick, who has five interceptions and three fumbles this season.Kaepernick still has his rock hard abs and old game film of him shredding Matthews and the to fall back on. Amir Coffey Jersey