LeBron James' 20-year trainer reveals one quality the Lakers star shares with Michael Jordan and Kobe Bryant.

[{"selector":"#anim-668ec5f9-6def-46c8-8021-8127fbec1174 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(24.98400408613163%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-5efd2d22-bd46-459d-8fcc-a1e59cea35f5","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] In 2003, Mancias worked as a full-time assistant trainer with the Cleveland Cavaliers during James' first NBA preseason.

[{"selector":"#anim-e29fc7d4-69a7-4057-afdd-b6da86271227 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c5d6477a-525b-4d9d-a95d-4f2b5ac2e841","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Since then, Mancias has worked alongside King James, the NBA's all-time leading scorer, to build one of the greatest résumés in basketball history.

[{"selector":"#anim-c569e550-5fef-49f1-9064-e38475584f8b [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(24.985454906760946%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-76e37e58-223d-4c7b-ac91-817b13a92cd7","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Mancias is currently LeBron's Chief Human Performance Advisor and has created a winning human-performance plan that includes preventative medicine, strength training/rehabilitation, nutrition, and cutting-edge recovery procedures.

[{"selector":"#anim-72d92233-ab4e-4af8-8502-0c73aaec247e [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(1.2289855183644498%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-edceefa4-455c-4519-83fe-5d2a230d354e","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] During a recent appearance on the High Performance podcast, the 48-year-old discussed his long-standing relationship with the NBA star.

[{"selector":"#anim-fad5e651-5145-4b54-9619-a3ccafb395c4 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(22.38566766117394%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-b2a04099-e641-4938-93a5-576499c817b9","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Mancias was asked what one attribute LeBron had in common with basketball legends Michael Jordan and Kobe Bryant.

[{"selector":"#anim-db454568-075e-45a5-af66-fb3862c6114c [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-a4187852-accb-4be5-9845-001d985d429e","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] James, a four-time NBA champion and four-time Finals MVP, is frequently compared to Michael Jordan in talks about the best players of all time.

[{"selector":"#anim-86ca17ee-a60c-4c27-bd6a-8693aeca1525 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-7.482857210641349%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-57a675d6-a8a6-400d-833c-be9445a4efee","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Bryant, a five-time champion with the Los Angeles Lakers, is regarded as one of the best basketball players in history.

[{"selector":"#anim-105e12c2-0af5-4847-99ac-2db07c1a7962 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-24.222857362282305%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":3500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-3513c9f6-128d-4e8f-a2c6-0efa8c7fb336","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Mancias has spent time with all three and believes they share a common feature.

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LeBron James' 20-year trainer reveals one quality the Lakers star shares with Michael Jordan and Kobe Bryant.

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