In Part 1, Page 1, there is the following line:
"T he video showed that Federer varied his hitting arm position from ball to ball."
"The" has a space in it.
In Part 2, Page 2, "helpFederer" should have a space in between it.
"T he video showed that Federer varied his hitting arm position from ball to ball."
"The" has a space in it.
In Part 2, Page 2, "helpFederer" should have a space in between it.