The Seattle Mariners and rookie phenom Julio Rodriguez have worked out a deal to keep the outfielder in Seattle for the next 14 years. The 21-year-old has played in 108 games this season with 20 home runs, 23 stolen bases, and an OPS of .799.Jeff Passan@JeffPassanBREAKING: Star rookie Julio Rodriguez and the Seattle Mariners are finalizing a massive long-term contract extension, sources tell ESPN.206782498BREAKING: Star rookie Julio Rodriguez and the Seattle Mariners are finalizing a massive long-term contract extension, sources tell ESPN."BREAKING: Star rookie Julio Rodriguez and the Seattle Mariners are finalizing a massive long-term contract extension, sources tell ESPN." - Jeff PassanJulio Rodriguez is signing a 14-year, $210 million deal with incentives to make the deal upward of $400 million. Jesse Sanchez was the first to report the breaking news.Jeff Passan@JeffPassanThe structure of Julio Rodriguez's massive extension is very complicated, but the topline details, sources tell ESPN: $210 million guaranteed over 14 years with the ability to grow to well over $400M. Includes player and team options.The great @JesseSanchezMLB was on the deal.66041000The structure of Julio Rodriguez's massive extension is very complicated, but the topline details, sources tell ESPN: $210 million guaranteed over 14 years with the ability to grow to well over $400M. Includes player and team options.The great @JesseSanchezMLB was on the deal."The structure of Julio Rodriguez's massive extension is very complicated, but the topline details, sources tell ESPN: $210 million guaranteed over 14 years with the abilty to grow well over $400M. Includes player and team options. The great @JesseSanchezMLB was on the deal." - Jeff PassanPassan further explained the complicated contract in a Twitter thread.Jeff Passan@JeffPassanTHREAD: There’s a lot to digest on Julio Rodríguez’s extension with Seattle, per ESPN sources. The deal could be for 8, 13, 16 or 18 years. It guarantees Rodriguez $210 million. If it maxes out, it will be the largest ever: $470 million. The details are important. Here they are.747112THREAD: There’s a lot to digest on Julio Rodríguez’s extension with Seattle, per ESPN sources. The deal could be for 8, 13, 16 or 18 years. It guarantees Rodriguez $210 million. If it maxes out, it will be the largest ever: $470 million. The details are important. Here they are."THREAD: There's a lot to digest on Julio Rodriguez's extension with Seattle, per ESPN sources. The deal could be for 8, 13, 16 or 18 years. It guarantees Rodriguez $210 million. If it maxes out, it will be the largest ever: $470 million. The details are important. Here they are." - Jeff PassanThe base of the contract runs through 2029 and is worth $120 million. After this, Julio Rodriguez could be extended for a potential 18 seasons. The contract would be the largest in the history of Major League Baseball.Jeff Passan@JeffPassanThe base of the deal is for eight years and $120 million. It includes this season and runs through 2029. After 2028, the Mariners must decide whether to pick up a club option. The size and length of that depends on Rodriguez’s performance in MVP voting.75890The base of the deal is for eight years and $120 million. It includes this season and runs through 2029. After 2028, the Mariners must decide whether to pick up a club option. The size and length of that depends on Rodriguez’s performance in MVP voting."The base of the deal is for eight year and $120 million. It includes this season and runs through 2029. After 2028, the Mariners must decide whether to pick up a club option. The size and length of that depends on Rodriguez's performance in MVP voting." - Jeff PassanMany fans took to Twitter to react to the breaking news. With an extension that could be up to as many as 18 years, fans are already thinking of him as a Mariners Hall of Famer.SEA Munknd@munknd@JeffPassan @JesseSanchezMLB JULIO YOU ARE A MARINER HALL OF FAMER38@JeffPassan @JesseSanchezMLB JULIO YOU ARE A MARINER HALL OF FAMEROne Seattle Mariners fan could not be happier as their rookie superstar signed with the team long-term.Ben Gretch@YardsPerGretchGreat day to be a Mariners fan twitter.com/JeffPassan/sta…Jeff Passan@JeffPassanThe structure of Julio Rodriguez's massive extension is very complicated, but the topline details, sources tell ESPN: $210 million guaranteed over 14 years with the ability to grow to well over $400M. Includes player and team options.The great @JesseSanchezMLB was on the deal.101011The structure of Julio Rodriguez's massive extension is very complicated, but the topline details, sources tell ESPN: $210 million guaranteed over 14 years with the ability to grow to well over $400M. Includes player and team options.The great @JesseSanchezMLB was on the deal.Great day to be a Mariners fan twitter.com/JeffPassan/sta…It is exciting news for both Mariners fans and Rodriguez.Mikaela Mattes 🎙@mikaelamattesHOLY SHIT!!! Massive news!!! Let’s go!!! So happy for @JRODshow44 and the @Mariners!!! #SEAUSRISE twitter.com/jeffpassan/sta…Jeff Passan@JeffPassanThe structure of Julio Rodriguez's massive extension is very complicated, but the topline details, sources tell ESPN: $210 million guaranteed over 14 years with the ability to grow to well over $400M. Includes player and team options.The great @JesseSanchezMLB was on the deal.372The structure of Julio Rodriguez's massive extension is very complicated, but the topline details, sources tell ESPN: $210 million guaranteed over 14 years with the ability to grow to well over $400M. Includes player and team options.The great @JesseSanchezMLB was on the deal.HOLY SHIT!!! Massive news!!! Let’s go!!! So happy for @JRODshow44 and the @Mariners!!! #SEAUSRISE twitter.com/jeffpassan/sta…Some fans feel this is an interesting move given that he has not played a full season yet. The Mariners are certainly gambling on his talent and future growth as a player. If he can play as well as or better than he has in his rookie season, then the Mariners are getting a great deal.Lenny@lennyhadley@JeffPassan 18 years lol. What are we even doing anymore. Might as well jsut make it 50 years to spread out the hit 1@JeffPassan 18 years lol. What are we even doing anymore. Might as well jsut make it 50 years to spread out the hit 😂Anthony 🐅@YourBuddyTony@JeffPassan Nah this is wild he hasn’t even played a full year1@JeffPassan Nah this is wild he hasn’t even played a full yearOther fans love the contract and how it is flexible for both the team and player based on performance.IH@IHNYC3@JeffPassan I love these kind of flexible contracts for both sides.3@JeffPassan I love these kind of flexible contracts for both sides.The face of the Seattle Mariners franchise looks set as the young superstar has yet to reach his full potential. For more news and updates, go to the Sportskeeda Baseball page.