This may occur if: 1  You have a sudden drop in blood pressure. 2  Your body does not have enough water (is dehydrated) because of vomiting, diarrhea, fever, and other conditions. 3  You get up too quickly after sitting or lying down (this is more common in older people).
Wimbledon 2015: Rafael Nadalâs coach says itâs good to talk during play. Toni Nadal feels that coaches are getting a rough deal. Toni Nadal, the coach and uncle of Rafael Nadal, believes it is impossible for a coach not to encourage and communicate generally with a player during a match.
Antonio Toni Nadal Homar (born 27 February 1961 in Manacor, Mallorca) is a Spanish tennis coach. Toni Nadal is the uncle and coach of tennis player Rafael Nadal and the older brother of Spanish footballer Miguel Ãngel Nadal. As of 2013, he is the most successful coach in the history of tennis in terms of Grand Slam titles, winning 14 Grand Slam trophies with Rafael Nadal. 1 Coaching style.