OWINGS MILLS, Md. -- The Baltimore Ravens signed left tackle Ronnie Stanley to a five-year extension on Friday, continuing a commitment to keep their young All-Pro talent.

Stanley becomes the NFL's second-highest-paid left tackle, striking a $98.75 million extension, a source told ESPN's Adam Schefter. His annual average of $19.75 million trails only Houston's Laremy Tunsil ($22 million per season).

Stanley's deal maxes out at $112.866 million, the source said. He did surpass Tunsil in three areas: signing bonus ($22.5 million), total guarantees ($70.866 million, over $16 million more than Tunsil) and payout through March 31 ($47.116 million).

The extension keeps Stanley protecting Lamar Jackson's blind side through the 2025 season and comes 29 days after the Ravens signed All-Pro cornerback Marlon Humphrey to a five-year, $98.75 million extension.

"Ronnie is the mainstay on our offensive line," Ravens general manager Eric DeCosta said. "He's a shutdown left tackle who excels on the field and in our community. This is just the beginning for Ronnie, and we could not be happier for him and his family."

Stanley, 26, used his size, athleticism and strength to develop into the game's best left tackle last season, when he allowed six pressures -- the fewest by an offensive tackle in 14 years -- during Jackson's NFL MVP campaign. He also was a key blocker in Baltimore's dominant running game, which set an NFL record for single-season rushing yards in 2019. All of this earned him All-Pro and Pro Bowl honors for the first time in his career.

Through seven weeks this season, Stanley has a pass block win rate of 96.8%, the highest among qualified offensive tackles. His 78.3% run block win rate ranks ninth among offensive tackles.

Stanley was the No. 6 overall pick in the 2016 draft, filling the long-standing void left by a Hall of Fame lineman. After Jonathan Ogden retired in 2007, Baltimore went through seven starting left tackles in eight years: Jared Gaither, Adam Terry, Michael Oher, Bryant McKinnie, Eugene Monroe, James Hurst and Kelechi Osemele.

It looked like Stanley was headed to getting the franchise tag in February, especially if he wanted to become the highest-paid left tackle. Tunsil shattered the left tackle market in April because he had leverage. The Texans had traded two first-round picks and a second-rounder to the Miami Dolphins for Tunsil, and they couldn't afford to let him walk.

The problem for the Ravens is they would be unable financially to keep one of the most talented young rosters intact if they signed everyone to record-setting deals. But Stanley showed how much he wanted to stay in Baltimore by signing a similar extension to Humphrey, who is the NFL's second-highest-paid cornerback behind the Los Angeles Rams' Jalen Ramsey.

Even after signing Stanley and Humphrey, the Ravens have more big financial decisions looming after the season. Baltimore has to decide which pass-rusher to sign long term: Yannick Ngakoue, who was recently acquired in a trade, or Matthew Judon, who received the Ravens' franchise tag this season.

There are three other Pro Bowl players on the Ravens who are scheduled to become free agents over the next three years: Jackson (potential free agent in 2023), tight end Mark Andrews (2022) and offensive tackle Orlando Brown Jr. (2022).