how do the cyclers drink water while riding or racing in the warm and hot sun shine during french Open?

Answer 1

OK, I'm going to simplify your question: How do cyclists drink water when riding or racing?

A cyclist generally carries water or other other drinks in either plastic water bottles or a hydration pack.

Drinking from bottles carried on the bike or in the pocket: Take the bottle out of the cage or pocket with one hand and sip through the open valve.

Drinking from a hydration pack: Just put the tube from the pack in the mouth--bite down on the valve and suck.

By "french Open" I'm guessing you mean the Tour de France bicycle race that takes place for three weeks in July. The riders drink from bottles handed to them by team support personnel or other riders on the team. They never drink from bottles given them by spectators, but they may cool off by pouring the water over themselves. If you watch the race on TV, sooner or later you will observe this yourself.

Answer 2

The french open is tennis.

During the Tour De France (and most other international cycling events) the rider's drinks (and electrolytes) are either picked up at the feeding stations or ferried forward by members of their team from the support vehicle.

One of the points missed by casual observers is that the member who ferries the drinks forward uses up heaps of energy. They have to catch up to a peloton whilst carrying quite a bit of weight. You never see a contending rider doing this.

The efforts of these team members are often overlooked and usually rule them out of contention. It is a sacrifice they willingly make for the team