After completing the transfer of Gyökeres deal the balances are likely to be upset. 
But it all depends on his performance at Arsenal.
I'll pray for him not to end up like Nunez. He also had a spectacular scoring effort in the Liga Portugal before coming to the PL as you remember.
If this doesn't happen Arsenal can finally be in the title race for real - I mean till the end! Not only here but also in the CL.
A lot of drama Gyökeres transfer from Sporting Lisbon to Arsenal and finally both team reached agreement, welcome to Premier League Gyökeres and must remember not easy for scoring goal by goal every match how did with Sporting Lisbon at Portugal domestic league. But it all depends on his performance at Arsenal.I'll pray for him not to end up like Nunez. He also had a spectacular scoring effort in the Liga Portugal before coming to the PL as you remember.
If this doesn't happen Arsenal can finally be in the title race for real - I mean till the end! Not only here but also in the CL.
I remember with Nunez become top scorer for Benfica and first season with Liverpool have problem for adapting well, wish Gyökeres can make around 20 to 25 goals for Arsenal at Premier League first season and absolutely nice memorize for Arsenal fans if can winning Premier League tittle.