Mark T. Denucci Sr. Is Not As Young As He Used To Be ...
 

2005-06 NFHS Basketball Rules Changes

LEAVING COURT FOR UNAUTHORIZED REASON CHANGED TO VIOLATION (9-3-2): The rule for leaving the court for an unauthorized reason has been changed from a technical foul to a violation. Leaving the court during the course of play has been increasing with the former penalty of a technical foul not being assessed. Typically, this play is seen when an offensive player goes around a low screen, runs outside the end line and returns on the other side of the court free of their defender. The violation will be called as soon as the player leaves the court. The committee hopes that changing the penalty will increase the likelihood of the infraction being called and eliminate this tremendous advantage.

How about "excessively swinging elbows with no contact"?

Let's save Mark T. DeNucci, Sr. from making a trip up to his attic. You know, he's not as young as he used to be. In fact, I don't believe that Mark T. DeNucci, Sr. has ever been young.

Please clear up one more thing.
Player wearing red jersey with long sleeve red undershirt & white leggings.
Legal?

Absent Other Color/Equipment Issues ...
 

Absent any other equipment/color issues on said player, or on the rest of that player's team, as a stand alone issue, perfectly legal.

Undershirts must be similar in color to the uniform jersey, and undershirt sleeves shall be the same length. Note that this rule does not require all players to wear the same length sleeves on their undershirts, but each individual player must have sleeves the same length on the undershirt when worn.

There is a wider array of legal color options for other equipment items such as headbands, wristbands, arm sleeves, knee sleeves, lower leg sleeves, compression shorts, and tights. All of these equipment items must be the solid color black, white, beige, or the predominant color of the uniform jersey. All of these items shall be the same color as worn by each player. Additionally, all of these items shall be the same color for all members of a team who choose to wear them.