People have different views with regard to the most important factor in the success of a sport game. While some argue that players need physical strength to win a game, I strongly believe that mental strength exerts much more powerful impact.
On the one hand, I concur that the opportunity of success can be enhanced only if there are fittest and strongest teams and individuals. To be more specific, sports are often considered to require heavy workouts and physical activities. As a result, players and their teams need years of training and practice so that they may be able to compete with others to win a game. A typical example of this would be football, which always demand personal skills, experience and teamwork skills to score as many goals as possible as well as avoid any fines during a particular match.
On the other hand, I personally reckon that mental attitudes play a much more vital role in not only the final results but also their long-term careers as attitudes truly act as motivations for athletes to overcome failures and try more. In fact, the very thing that make a world-class player different from an inconsistent performer is mental toughness. To illustrate, there are a variety of professional athletes becoming legend thanks to failure lessons in the past such as Lionel Messi, Sachin Tendulkar.
In conclusion, it seems to me that the success of a sport should be defined by mental attitudes, not by the strength and power of the players. 
 People
 have  
different
 views with regard to the most  
important
 factor in the success of a sport game. While  
some
 argue that  
players
 need physical strength to win a game, I  
strongly
 believe that  
mental
 strength exerts much more powerful impact.
On the one hand, I concur that the opportunity of success can  
be enhanced
  only
 if there are fittest and strongest teams and individuals. To be more specific, sports are  
often
  considered to require
 heavy workouts and physical activities.  
As a result
,  
players
 and their teams need years of training and practice  
so
 that they may be able to compete with others to win a game. A typical example of this would be football, which always demand personal  
skills
, experience and teamwork  
skills
 to score as  
many
 goals as possible  
as well
 as avoid any fines during a particular match. 
On the other hand
, I  
personally
 reckon that  
mental
 attitudes play a much more vital role in not  
only
 the final results  
but
  also
 their long-term careers as attitudes  
truly
 act as motivations for athletes to overcome failures and try more. In fact, the  
very
 thing that  
make
 a world- 
class
  player
  different
 from an inconsistent performer is  
mental
 toughness. To illustrate, there are a variety of professional athletes becoming legend thanks to failure lessons in the past such as Lionel Messi,  
Sachin
  Tendulkar
. 
In conclusion
, it seems to me that the success of a sport should  
be defined
 by  
mental
 attitudes, not by the strength and power of the  
players
.