Hi there
I would like to share the design progress of the branding I designed for FIFA Mobile Kickoff Rivalries Events. This is one of the high value program in FIFA Mobile Season 6 live events and  it contains lots of competitions and high value rewards. 
Let's start from the beginning:

Key words: Battle, Competition, versus...

These are where the inspiration came from and how the concept built on. Starting from these points, I sketched 3 ideas for the main branding and chose possible colors to reveal a better concept of competition. 

The first idea looks illustrate the concept best, so I moved on building up on it. I started from add different texture and color to each side of the ball. Initially I chose 2 kind of materials: metal and glass, to give a hard, sharp and crispy feeling to the brand.
I then chose the classic blue and red color as the main palette. It delivers a good contrast and balanced value for both sides. 
To make the split more impressing, I tried several approaches, and found the laser light looks better in all the alternatives. That lightening line can attract viewers attention to the logo and it is easier to recognize on a mobile screen. 
I also worked on the back patterns to match the ball material and color palette.

Here is the final branding!
You can notice I adjust the color a bit so the overall vibe is brighter, I added refection color and add red and blue to the other team to make the patterns and sparkles more dynamic. I also iterate the patterns to make them both tilted and give them a unified angle and thickness. This branding will then be detailed enough to developed to other assets.

I would also like to share the design process behind the player item for this event.

Based on the content design, we will have 4 sets of player items with value from base to high. I can start from the base one first:
For the base player item, I used the same blue/red concept as the background, and I set the wings as one blue side and one red side as well to match the concept. Then the only thing I'm going to put effort on is the wings' shape. I started with some sketches again:

Version 4 looks better on the silhouette wise, the pointy sharp wing looks like an arrow and there will be sparkles around the item, which makes the overall look more dynamic. So I moved forward on this version and applied the same texture from branding to the item, to differentiate the value, I simplified the wings as well as the backgrounds.

There will also be a higher value player item, which includes a concept of transfer. I did a top transfer player item before so I intentionally grab the curving arrow from the top transfer one and put the wings on top corner to leave more room for the arrows. I also using the pattern shape in the branding and put them between the back wings and the front arrows. By this way I was not only making the silhouette more interesting, but also creating more layers and depth to the player item. Here is the final design:

The other 2 sets are much easier, the kickoff transfer player item is a recolor from a previous set I worked on, and the event icon player item is to add laurels to the base ones. With the 4 sets done, I finally checked the value chart and make sure it is easy to recognize the value at a glance. When putting on the mockup, they also pop out in a good way.

The last part is the most fun part: animation! It is a big amount of animation work but as they are sharing some of the elements, such as the arrow, the sparkle and the background, it took shorter time than making 4 full sets of animation. I also add some glowing to the celebration one to show more value from animation side.

Thank you for watching!