The number 84 is not a particularly common shirt number. No player who is particularly famous has ever worn it.
These players have worn number 58 for the Pittsburgh Steelers: * Jack Lambert (74-84) * Chuck Allen (70-71) * Ed Pine (65) * Gail Clark (63) * Roger Pillath (60)
I can think of two. Randy Moss wore number 84 with the Minnesota Vikings, now with the Patriots. And the best to ever wear 84 was Shannon Sharpe, who played the majority of his NFL career with the Denver Broncos.
Shaun McDonald currently does.
Randy moss No. 84 Roddy white No. 84 T J Houshmandzadeh No. 84
These players have worn number 5 for the Pittsburgh Steelers: * David Trout (87) * Craig Colquitt (78-81, 83-84) * Terry Hanratty (69-76) * John Binotto (42) * Henry Bruder (40) * George Rado (36) * Gene Augustferner (35)
Randy Moss and Shannon Sharpe.
The number 86 is the only number left in the NHL between 00-99 that has never been used. Edit: The answer above is wrong. Every single number between 00-99 has been worn. The last number that wasn't worn was 84, which Guillaume Latendresse wore with the Canadiens. Mikael Grabovski wears it with the Maple Leafs currently. There have been 3 players who have worn the number 86: Jonathan Ferland for the Canadiens in 2006, Jeremy Williams for the Rangers in 2011 and Wojtek Wolski for the Phoenix Coyotes and New York Rangers currently.
In 2014, there were a record 92 international players in the National Basketball Association. The number in 2013 was 84.
Patrick creaton Doug Cosbie and Jay Novacek also wore 84 for the Cowboys. Both tight ends.