Here's what the Twitterati had to say!
A phenomenal innings to mark the end of a brilliant test career. Pleasure to have known u & played against u. Gentleman Kallis farewell!
Pat Symcox @PatSymcox77
Not embarassed to say my face was leaking when he got that run to a century!
Bishan Bedi @BishanBedi
Hail King Kallis!Even his worst critic wudn't begrudge JK farewell ton-truly fantastic feat V normally relate 2 dreams!!
anesly manoj @Mano0114
If Jacques Kallis becomes a coach, he will make three people jobless. The batting coach, bowling coach & fielding coach #SSCricket
Asanda Magaqa @asandamagaqa
I hear Jacques Kallis is single... It so happens that I'm single too. Dear Universe... Do ur thang.
Jacques Kallis goes past Rahul Dravid's test record. And Dravid says Kallis is better than him from the commentary box. Beauty.
I am an African! @Clint_ZA
The humbleness of most SA sportsmen further illustrated by Kallis. Sudden notice given of retirement. No time for big fuss and build up.
Now waiting for Kallis to thank Vinod Kambli in his farewell speech.
Mark Brazier @mbraze
Seeing as Kallis is not going to play for South Africa anymore I think he would slot in nicely at 5 for england!
Russell Jackson @rustyjacko
Jacques Kallis was not underrated. Stop saying it. It's bollocks. Not a single person who knows anything about cricket underrates him.