From the following attached video, from this video, we can tell that the mistakes are higher and the shooting chance is limited when the chemistry is 0 But when the chemistry increases to 100, the result is quite surprising, for example, the passing will be incorrect, the shooting is easy and the assist is right.

Chemistry used to describe the mutual understanding among players and FUT chemistry plays an important part there and it can be calculated by numbers. When we organize a team in the game, the high chemistry will level up the ability of players in some degree, so if you want to win the game, build a team with high chemistry is the key.
 

First of all, put the player in the correct place to gain a certain number of chemistry. And from the color under the player card, we can tell the level of chemistry.

Green: player in the right position (ST in position ST, CM in position CM and so on), the maximum chemistry.
Orange: player in similar position (CM in position RM, CDM in position CM and so on), normal chemistry.
Red: player in wrong position (CB in position CF), no chemistry.

In FUT, there are some links between near positions Take two positions as an example here, there will be some chemistry gained if the players in these two positions have the same nationality, or the same leagues or the same team.

Green: two attributes are the same, high chemistry increased.
Orange: one attribute the same, normal chemistry increased.
Red: none attributes are the same, no chemistry increased.

Coach chemistry increased

When there are some players in your team share the same league with your coach or have the same nationality, the coach chemistry will be stimulated, personal chemistry will be leved up and the corresponding color will turn into green. But you can purchase coach belonged league in the store or change the league with the training card.

Loyalty chemistry increased

When the loyalty rate in player card turns to green, it means that there is chemistry increased in player. The player in the card will gain loyalty chemistry increased. But if the player is bought from the store, we need at least tem game to win loyalty. And if you don’t sell it after the loyalty appears, it will continue to help you.

Chemistry types

Use different types of chemistry will affect the specific attribute of players. Different chemistry types will have different effect to increase at least two attributes of players. You can also use the attribute increased card in players to achieve similar effect as well.

The increased effect mainly determined by the total value of chemistry the player gained, the more chemistry is, the more effect it increased. And the player will have better performance then.

When the player chemistry reaches at the highest level, it arrow beside the player will become green, which means it has achieved the best effect under this chemistry. And his performance will certainly great in FIFA 14.