Myasthenia gravis. Myasthenia gravis (MG) is an autoimmune disease that weakens the muscles. The name comes from Greek and Latin words meaning grave muscle weakness. But most cases of MG are not as grave as the name implies. In fact, most people with MG can expect to live normal lives.
To be more precise, it is when a player records double-digit values for three statistical categories. A basketball player accomplishes a triple double by reaching double digits in 3 of the following: assists, rebounds, points, steals, and blocks. In most cases the 3 doubles are assists, rebounds, and points. There have also been 4 quadruple doubles in the NBA, when players reached double digits in 4 of the above stats.
What is Three-Second Violation? A violation in basketball, defined as an offensive or defensive player being positioned in the key longer than three seconds. The requirements for calling this violation on an offensive or defensive player differ. A defensive player may remain in the key as long as he is actively defending an offensive player.