Finally got a screenshot of this pop-up!
Wooohoooo!
Fortunately I got the EARTH Splinter as my daily quest for today and mainly because of that I really made it into the highest league at the moment, the CHAMPIONS I league. Wooohooo! XD
Although this is my second time reaching this league (made it to the CHAMPIONS I league last season), I was not able to get a screenshot of the pop-up below since I accidentally reloaded the page at that time.
Fortunately I was able to get a screenshot of this today, so here ya go!
A huge thanks to this player below who surrendered his match to me. Before this, it was the usual win-win-lose-lose-lose-win-win (and another lose-lose-lose) pattern for me. Good thing this guy surrendered so I was able to reach the CHAMPIONS I league, guarantee those 150 reward chests and take a screenshot of the pop-up.
After claiming my daily quest rewards, I had a hard time climbing back to the CHAMPIONS I league again so it was really fortunate of me to get that one surrender. XD
I did get a little lucky playing some matches this afternoon as I was able to reach a battle rating of 4752 (my highest yet) and obtain the RANK #206 in the leaderboard.