Tight end Zach Ertz was traded to the Cardinals from the Eagles back in October, and now both teams are in the playoffs. The Cardinals are the fifth NFC seed, while the Eagles are the seventh seed.Since joining the Cardinals, Ertz has played a crucial part on the team, becoming Mark Clayton Jersey their third top receiver. During the regular season with the Cardinals, Ertz completed 56 of 81 pa ses for 574 yards. He's also scored three touchdowns. All of these results after only Tua Tagovailoa T Shirts playing 11 games with the Cardinals this season.So, if Ertz is playing so well this year, why would the Eagles trade him? Here's a look at what caused the Ertz trade back in October.MORE: When Ertz was traded during Week 6 of the regular season, the Eagles and quarterback Jalen Hurts were only utilizing tight ends 22 percent of the time, which was down from the previous season when they were used 35 percent of the time.So, the Eagles took advantage of saving money in their cap space by gettinga player andpick in return.The Eagles added $5. Sam Eguavoen Jersey 5 million to their cap space after the Ertz trade, which increased DeVante Parker Jersey their total amount to $21 million. This gives them more options to explore during the off season.Additionally, the Eagles gained cornerback Tay Gowan in the trade. The Eagles also secured a fifth-round pick in the 2022 NFL Draft with the trade.MORE: During the week of the trade, the Cardinals lost their star tight end Maxx Williams to a season-ending knee injury.Williams completed 193 receiving yards and one touchdown in thefive games he Andrew Van Ginkel Jersey played this season. So, at the time, the Cardinals were in desperate need of a star tight end.The Cardinals were also 5-0 at that point with early playoff predictions happening. They were the last team to remain undefeated this last season, ultimately losing to the Packers when they had a 7-0 record.MORE: The Eagles turned to tight end Dallas Goedert to fill in for Ertz. In his 15 games this season (he mi sed Blake Ferguson Jersey two games due to COVID-19), he outperformed Ertz yards wise. Goedert completed 56 of 76 pa ses for 830 yards. Goedert only follows wide receiver DeVonta Smith for totalyardage completed by an Eagles receiver this season.