Derek Thompson @tommoracing

So sad to hear of the death of JT Mcnamara at the age of 41. He was one of the toughest men i have ever met and one of the finest horseman!

Sam Twiston-Davies @samtwiston

Incredibly sad to hear of the passing of JT McNamara. Thoughts are with his family and friends.

Davy Russell ‏@_Davy_Russel_

To 1 of the greatest 2 step into a pair of riding boots may you rest in peace JT

We are saddened at the news of J.T.’s passing. He displayed the same bravery through illness that he was renowned for on the track. His passing is a frightening reminder of the risks that riders put themselves through for our sport.

J.T. is at peace now and our deepest sympathies go to Caroline, Dylan, Harry and Olivia and all of J.T.’s extended family.

Andrew Coonan

BarryJGeraghty ‏@BarryJGeraghty

One of the saddest days in our sport to loose JT McNamara a great friend to us all and a brilliant horseman RIP

Willie Mullins ‏@WillieMullinsNH

We offer our deepest sympathies to JT McNamara's family and friends. May he rest in peace

Niall Cronin ‏@HeraldRacing

Niall Cronin Retweeted CheltenhamRacecourse

Rest in peace John Thomas. King of the banks. King of the horsemen. One of a kind. #RIPJT

Oli Bell@olibellracing

If anyone is unsure as to just how good a horseman JT McNamara was, watch his ride on Rith Dubh at the 2002 Festival. It was perfect. RIPJT

mick fitzgerald @mickfitzg

Very sad hearing the news about John Thomas McNamara. He was a real fighter & just a decent person. May he rest in peace

BoyleSports @BoyleSports

Morning all. Thoughts & prayers are with family & friends of JT McNamara who sadly passed away. A sad, sad day. RIP

Lucinda Creighton @LCreighton

Devastating news that JT McNamara has passed away. Deepest sympathies to his wife and children. It's a cruel cruel world #RIP @GoRacing

Ben Pauling Racing @benpauling1

JT McNamara wasn't someone I knew personally but someone I had huge admiration for both in the saddle and his courage later in life. #RIPJT

CheltenhamRacecourse @CheltenhamRaces

We are saddened to hear of the death of JT McNamara. Our thoughts are with his wife Caroline, his children and all who knew him.

Connolly's RED MILLS @RED_MILLSfeed

Sad to hear about the passing of JT McNamara - one of Ireland's finest amateur jockeys ever. Thoughts are with his family and friends. RIP

Leopardstown RC @LeopardstownRC

RIP John Thomas McNamara. Our thoughts are with his family and friends through this difficult time, he'll be sadly missed by all!!

Charlie Fellowes @FellowesRacing

Just when you think everything is going against you something comes along to bring it all into perspective. RIP JT McNamara.

EASYFIX @EasyFixOfficial

Very sad news this morning of the sad passing of John Thomas McNamara. Our thoughts are with his wife Caroline, his children & their family.

Daragh Ó Conchúir @RebelDevil71

So sad about John Thomas McNamara, so tough for his family. Irreverent, funny, such a horseman + talented rider #RIPJT