This could take many years, happen very quickly, or not happen at all. There is not garauntee that you will ever get the chance to play professional soccer, even if you play well in high school and college soccer. The length of time it takes to become a professional soccer player depends on several factors:
1. Your technical skills (touch, shooting, passing, dribbling, defending, etc.)2. Your athletic abilities (speed, strength, size, quickness, etc.)3. Your tactical skills (soccer brain, team shape, support, etc.)4. Your exposure (who you play for, history of programs you play for, where you play, what tournaments, etc.)5. The level at which you're playing (premier team, ODP, NCAA Division I/II/III, etc.)6. Who you know (coaches, who your coaches know, other players, agents, etc.)7. Politics (other players have been more well known for a longer period of time)8. Luck
Even if you have a good rating in all of these factors, there is still no garauntee. Just keep working hard, and give everything you can and hope for the best. And if it doesn't work out, at least you gat it your all.
Football QuestionIf the man standing on the sideline tackle the guy running down the sideline, then it would be an interference because once you step off the field and back on you inactive for the rest of the play and it would not count so the referee would not advance the ball at all.
*Because this is a blatant rulebreaking which has the potential to prevent a touchdown or great yardage gain, the ref would probably give a personal foul and a fifteen yard penalty, or even might award the penalty touchdown. The player concerned (the one who tackled) is also quite likely to be ejected for extreme misconduct.
If you are talking like what Woodey Hayes did, there is a rule in all levels for 'flagrant fouls'. The referee in these situations can make any penalty he deems fair, including awarding points.
Superbowl 1 was played in 1967