"Sending a big hug to this phenomenon of current football, @neymarjr" - former Brazil left-back Roberto Carlos.
"Hate to hear the news on Neymar! What a player. Have a speedy recovery/Get well asap man! #HesABeast #MyKidsFavPlayer" - basketball player LeBron James of the Miami Heat.
"All our support to @neymarjr! #ForcaNeymar" - Brazil president Dilma Rousseff.
"Have strength brother. @neymarjr we are together with you, we love you" - Brazil and Chelsea midfielder Willian.
"Dear @Neymarjr, have strength, we are praying that your recovery is quick #forcaneymar" - Brazilian model Gisele Bundchen.
"Good recovery Neymar, God Bless you" - former Brazil international Gilberto Silva.
"Happy with our victory today, can't wait to face #Brasil, sad for @NeymarJr hope you get better soon #ForçaNeymar #éTois #poldi #worldcup" - Arsenal attacker Lukas Podolski, whose Germany side take on Brazil in the semi-finals.
"@neymarjr brother! I am with you! Force!" - Italy striker Mario Balotelli.
"My brother @neymarjr - me, Luca, my family and a lot of people in this world are praying and hoping for your fast recovery!!" - former Brazil international Kaka.
"Strength, Brother! @neymarjr" - Brazil and Tottenham midfielder Paulinho posted, along with a picture collage.
"We have one more reason to play with heart in this cup. Neymar, rest assured that our group loves you and give life to win this title for you. You were and continue to be the ace and the soul of our team. The whole of Brazil is praying for you!" - Brazil team-mate Fred, whose Facebook post included a drawing of Neymar being surrounded by fans.
"Neymar, i am unhappy. get well soon" - Germany midfielder Mesut Ozil.
"Neymar, I hope you recover very soon friend!" - Neymar's Barcelona team-mate and Argentina superstar Lionel Messi wrote on his Facebook page.
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