Most likely football,rugby
The collective nouns for players are:a huddle of playersa retinue of playersa cast of playersa company of playersa team of players
OK, if you look at Males only and exlcude rugby league, which has a further 22,000 players but the detailed stats are not available, you can make the following estimations. Population of new zealand is approx 4.2million, of whom approx 129,000 pre-teen, teen and adult males are registered with the NZRFU as rugby players - i.e. 3.1% of the total population. The NZRFU recognises the U-7 age group, so if we these 129,000 players are all aged 7 - 40 years, this means they are drawn from about 870,000 people according to the 2006 NZ census. So as a proportion of male population aged 7 - 40 about 129,000 out of 870,000, or 15% play rugby. You can make some assumptions and chuck in the 22,000 who play Rugby League and the aggregate League/ Union figure rises to more like 17%. In reality, there is probably a big player number drop off after the age of 30, when guys start getting families, not to mention sore, so can't spend their saturdays playing. This would increase the percentage further, so it could be as high as 20% of males aged 7 - 30 in NZ play rugby.
The age set by the government for retirement in Canada is 65, although it is not compulsory to retire at this age. Many people work past this age and many people may retire early due to various reasons.
Grey college
There is no set age for when basketball players retire. Some retire early due to injuries. Players generally retire, however, when they are about 35. When they are far past their prime and injuries plague their play, players are bound to retire.
Rugby Players
They usually retire from the late 30's to the mid-40's
15 players in a rugby team
You could be injured by larger players or injure smaller players.
Rugby Players' Association was created in 1998.
for rugby league it is 13 players and for rugby union it is 15 players
This is a rather dumb question since, as in any sport, a player can play as long as his abilities, age, desire, and a team's need for him allow him to do so!!
There are 122,598 registered rugby union players in japan.
Rugby League has 13 players on each team. Rugby Union has 15 players on each team. There is a recognised game of seven-a-side in Rugby Union.
Rugby Union 15 players, (8 forwards and 7 backs) (Rugby League 13 players)
Rugby Union Players Association was created in 1995.