The Edmonton Oilers signed defensemen Evan Bouchard to a four-year, $42 million contract extension. With an AAV of $10.5 million, Bouchard now ranks as the fourth-highest-paid defenseman in the NHL on Monday.Bouchard recorded 14 goals and 67 points in 82 games. He averaged over 23 minutes of ice time per game. He has 7 goals and 23 points in 22 games.In another recent NHL trade, the New York Islanders traded Noah Dobson to the Montreal Canadiens on Friday, where he quickly inked an eight-year, $76 million deal.Here’s a look at the league's top 10 NHL highest-paid defensemen by AAV:1. Erik Karlsson (Pittsburgh Penguins) – $11.5MKarlsson is signed through the 2026–27 season on a contract worth $11.5 million annually. Last season, he tallied 42 assists over 82 games.2. Drew Doughty (Los Angeles Kings) – $11MDoughty’s deal runs through 2026-27. He contributed 4 goals and 17 points in 30 games this season. He also had 4 points in 6 playoff games.3. Rasmus Dahlin (Buffalo Sabres) – $11MDahlin signed his contract through 2031-32 season. He got 51 assists and 68 points in 73 regular games last season.4. Evan Bouchard (Edmonton Oilers) – $10.5MBouchard's contract is valid until the 2028-29 season after what was a breakout year. He had 67 regular-season points and 22 playoff points.5. Zach Werenski (Columbus Blue Jackets) – $9.58MWerenski’s $57.5M contract extends to the 2027-28 season. He got 59 assists and 82 points in 81 regular games last season.6. Adam Fox (New York Rangers) – $9.5MAdam Fox’s $66.5M deal runs through 2028-29. He collected 51 assists and 61 points in 74 regular sesaon games.7. Charlie McAvoy (Boston Bruins) – $9.5MCharlie McAvoy's $76M contract runs through 2029-30. He had 16 assists and 23 points in 50 regular games last season.8. Noah Dobson (Montreal Canadiens) – $9.5MDobson’s contract expires in 2032-33. He recorded 29 goals and 39 points in 71 games.9. Seth Jones (Florida Panthers) – $9,500,000Seth Jones’ $76M deal lasts until the 2029-30 season. He got 36 points in 63 regular games, adding 9 points in the playoffs last season.10. Darnell Nurse (Edmonton Oilers) – $9,250,000Darnell Nurse has a $74M contract valid until 2029-30. He had 28 assists and 33 points in 76 regular season games. He also got 8 points in the NHL playoffs.