Real Madrid are one of the most successful teams in club football. The record 13-time Champions League and 34-time La Liga winners are among three teams that have never been relegated from the Spanish top flight.In fact, Los Blancos have never had a lean period in their illustrious history. Considering their rich history and pedigree, many world-class players have turned up for the Merengues over the years. Many are still plying their trade at the club.On that note, here's a look at the five longest-serving players at the Santiago Bernabeu from the current squad.#5 Isco - 8 years, 7 monthsIsco has been at the Bernabeu for almost a decade.Isco arrived at Real Madrid in the summer of 2013 from Malaga with a lot of fanfare. Almost a decade and exactly 350 games later, it can be said that the 29-year-old midfielder has had a fairly successful stint.That is true despite the player being on the fringes in recent seasons, and linked with an exit from the club. The two-time La Liga and four-time Champions League winner has appeared only 14 times this season.Madrid Xtra.@MadridXtra350 games for Real Madrid! @isco_alarcon 🤍4:32 AM · Feb 7, 2022243884350 games for Real Madrid! @isco_alarcon 🤍 https://t.co/JcCyi4RkAoIsco has contributed 53 goals and 56 assists across competitions, with two of those strikes coming this season. Considering the player's bit-part role under Carlo Ancelotti, Isco looks all set to leave the Bernabeu this summer as a free agent.#4 Dani Carvajal - 8 years, 7 monthsDani Carvajal has been at the Bernabeu for almost a decade.Like Isco, Dani Carvajal also arrived at the Santiago Bernabeu in the summer of 2013.The 30-year-old right-back has scored just seven times, but has provided an impressive 51 assists across competitions. The injury-prone Carvajal recently played his 300th game for Real Madrid. He has bagged a goal and assist apiece in 20 games across competitions this season.Real Madrid Info ³⁴@RMadridInfoDani Carvajal made his 300th appearance for Real Madrid in the win over Barcelona at Camp Nou.7:17 AM · Oct 25, 202142528Dani Carvajal made his 300th appearance for Real Madrid in the win over Barcelona at Camp Nou. https://t.co/0UMM6vYEt6The former Bayer Leverkusen man, like Isco, is also a two-time La Liga and four-time Champions League winner. Having signed a contract extension last year, Carvajal is set to stay at the Santiago Bernabeu until the summer of 2025.