I have prepared a combo bet for the first week:
Man United @1.60
Liverpool @1.33
Newcastle @1.35
Man City @1.81
Total odds @5.20
It won't be much $10 is enough to bet, because that's what I can afford to lose if it's $10.

Oh man, I'm sorry to say this, but you will high likely lose your bet since you pick Manchester United to win.
There are no problem with the other three bets because both Liverpool and Newcastle will meet Championship teams and Chelsea is a failed team in this season. For Manchester United vs Fulham, it might end in draw.
Rodri is injured and the match takes place at Chelsea home ground. This means that Chelsea can still have a big chance of scoring.
Source? he's not injured, Pep just don't want to let him play in friendly match.