Metcalf's debut game in September 2019 was a sign of things to come, as he set a franchise record for total receiving yards by a player making his NFL debut, with 89 yards. In Week 2 against the Pittsburgh Steelers, Metcalf caught his first career touchdown, and in Week 8 against the Atlanta Falcons, he recorded his first career game with multiple touchdowns.

But Metcalf's best game of the 2019 season came in Week 10 against the Tampa Bay Buccaneers, where he set new career highs in receptions and receiving yards with six catches for 124 yards, including a 53-yard touchdown in the final minutes of the fourth quarter. This was his first career 100-yard game, and he also caught a two-point conversion that tied the game at 21 in the third quarter.

Metcalf continued his impressive performance into the 2020 season, where he set the franchise record for the Seahawks with 1,303 receiving yards, surpassing Steve Largent's record from 35 years prior. He was also named a second-team All-Pro in 2020 alongside Bobby Wagner and Jamal Adams as the other Seahawk All-Pros. In the Wild Card Round against the Philadelphia Eagles, Metcalf recorded seven catches for 160 yards and a touchdown in the Seahawks' 17–9 victory. This set the NFL record for most receiving yards by a rookie in a playoff game.

In the 2021 season, Metcalf's impressive plays continued, including a 84-yard touchdown catch-and-run with quarterback Geno Smith for the Seahawks' Week 7 Sunday Night Football game against the New Orleans Saints. He also had a standout performance in Week 16, where he caught six receptions for 63 yards and a career-high three touchdowns, contributing 18 points in a blowout 51–29 win against the Detroit Lions.

As we've seen, DK Metcalf has made some truly impressive plays throughout his career, from his debut game to his most recent season. Whether it's catching his first career touchdown, setting new career highs in receptions and receiving yards, or making clutch plays in playoff games, Metcalf has proven himself to be one of the most dynamic receivers in the game today. With his recent contract extension with the Seattle Seahawks, fans can look forward to seeing even more incredible plays from Metcalf in the years to come.