According to the Yankees' website, Mark Teixeira is 6'3"
Hopefully not
A lot of the Yankees are good, however some of better players include Derek Jeter, A-Rod, Nick Swisher, and Mark Teixiera.
Mark Kelly is not tall
Mark Harmon is 6ft tall.
Mark Zuckerberg is 5'8.5
Mark Sayre is 6'.
Mark Sinacori is 6'.
Mark Smolinski is 6'.
Mark Souza is 6'.
Mark Shimer is 6'.
Mark Rowley is 6'.
Mark Tierney is 6'.