tackle.
LT is left tackle and RT is right tackle
G can stand for goalkeeper in football.
quarter back
In football terminology, FS means Free Safety, a defensive position.
Wide receiver.
Football Club or Futbol Club
In football, FS stands for the defensive position of Free Safety.
11 is the Number of Players on a Football Team
A tee is American Football is a stand used to hold a stationary football in place during kickoffs. A tee is necessary because of the oblong / ovate shape of a football. Because it has "pointy ends" the football cannot be balanced in an upright position without a either a tee or a player to hold it upright. A picture of a tee can be seen by following the related link down below.
There is no position that is abbreviated to "TG", but maybe you misinterpreted it for "T/G" which means a player plays the Tackle AND Guard positions.
HB stands for "halfback" in football. The halfback is a running back position on the offensive team and is typically responsible for running with the ball and catching passes.
the football position ks is Kicker
The football player did not stand up because he was injured.