Yeahh, when Ronaldo has space to use his pace, as soon as he knocked the ball past a defender, the only way to stop him is to foul him.
Sprinters technique is just as much important as how big their legs are. You want to be using an economic and effective technique, that allows you to run as fast as possible, and also as long as possible. If you go on google you can find unbelievable amounts of topics and articles on this.
I'll go over some of the basic technique things you need to do.
- Arms driving backwards and forwards, not side to side.
-Elbow at a 90 degree angle.
-Fingers extended, but not necessarily locked together, you won't want to be tense, but you don't want them to be very loose and flapping about.
-Keep your arms low, many people make the mistake of pumping their arms too high, instead, think of pumping your hands backwards and forwards, your elbow-right-angle should be constant for the whole run, your hands should get to about in line with your waste on the back swing of your arms, but never behind your body, and on the forwards "pump" they should never go higher then your neck level.
-Your back should be erect with your pelvis/hips pointing directly forwards.
-face relaxed, neck maintaining level head, although not tensed.
-Balls of your feet (near your toes) should be the only parts of the foot that contact the floor.
-Drive Knee forwards.
-When at/approaching top speed, foot should contact the floor on your centre of gravity, or slightly ahead of it.
-Ankle dorsiflexed at all times during leg action, however, once ball of foot is in contact with floor, you should be extending your ankle as you drive your leg backwards to propel yourself forwards at a greater velocity. This can make the difference of half a second over the course of a 100m, which is massive.
-The less your in contact with the floor, the faster you go. Try not to leave your foot on the ground too long, as that is the same as driving a car with the breaks on.
I hope some of these tips benefit you. A good drill to improve sprinting technique is to jog on the spot but pretend you are running on broken glass or hot coals, so that your focused of getting your foot off the floor the instant it comes into contact with it. Do this for about 20 seconds, then have a 30 second normal jog on the spot, then back to the quick feet. This encourages you to have faster feet while sprinting, and also while dribbling/playing football.