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From the ASEE aggregator, a very interesting engineering application:
In a post for LiveScience (6/18, Gupta), Nikhil Gupta, an associate professor of composite materials at NYU, writes that since 1970 Adidas has resigned the official ball of the World Cup, and that it often “incorporated materials and technologies that were innovative advances for their time.” The Brazuca ball for the 2014 World Cup, is no exception and it is an “example of cutting-edge engineering and advanced materials.”
There is video from the lab in the LiveScience article, or view this talkSPORT review by two renown players:
Katherina Tarnai-Lokhorst, P.Eng, FEC, FGC (hon) 
Babolat Pure Drive Play is the first racket connected to the world. It is marketed starting May at a price of 400 euros. The first racket connected Play Pure Drive, Babolat signed will allow to analyze and to improve your game
It is not anymore a prototype.
This time it is more than just a prototype (see http://worldofinnovations.net/2013/04/02/show-how-babolat-innovate-to-be-in-the-competition/). Already marketed in the United States since December, it will land on the grounds of French Tennis in May.
If you are interested, I have posted an article about Babolat Play that you can read here:
http://worldofinnovations.net/2014/06/03/babolat-play-the-connected-tennis-racket/
That is very interesting, Olivier! Thanks for posting about other innovations in the field of sport…I’ll have to check out this blog, too.
Thanks Kathy. Hope to see comments from you in the next days.