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.
Andy Murrayâs tennis coaching mentors assessed by Nick Bollettieri. The respected coach rates the British playerâs backroom staff over the years and suggests what he might need in his new appointment. Simon Cambers. Saturday 21 May 2016 08.00 EDT Last modified on Saturday 21 May 2016 17.01 EDT.