Topeleven really likes to kick your balls, Had my best two players longtime injured within 5 minutes of my first cup match and my two mc's got 4 yellow cards the return match turning my field into rubble the next cup match. Sit it out or use red packs and you'll have fun with your guys later.
On a side note browse through 5* players and see if there are any which are very close to getting their 6th star. They won't train as fast but you'll get 3-4 6* players by the end of the season and that - if you bid early in the morning - way cheaper than one scout.