Anyone for tennis?

If you didn't see the tennis last night I am sure you will hear about it this morning.  Two gladiators slugging it out, 59 all in the final set and it's still not finished.  Every record smashed but there a couple of points I'd like to mention.  Nicolas Mahut (who was bouncing around like a spring lamb) served to stay in the match 54 times - what does that say about his mental toughness?  On the other hand John Isner couldn't move for his cramping legs yet boomed out his serve and some how held on when his body would be telling him to give up!  Despite all of that they still played some amazing tennis.  Great motivation for me and I am sure when I am digging into my reserves during training or in the ironman event I will replay those images in my head with the message "keep going".
It made my 12 km in 49 mins this morning seem extremely easy as my running legs are really coming on.  I am getting faster within the heart rate limits set by my coach.  Still have an issue with my toes but I will get this sorted.  Just keeping the legs going until the heavy duty training at the weekend.