If Timo Werner moves to Liverpool, Jurgen Klopp has two options. He can either chop and change his tactics or let one of his star strikers go.
The Reds boss has had his system perfected over the past two years and has avoided tinkering too much, especially in the transfer market.
Since the signing of Alisson in 2018, that has seemed to have completed the puzzle with the only major arrivals since being Adrian and Takumi Minamino.
And it has worked well - Liverpool won the Champions League last season and were on course to win the Premier League this year before the coronavirus crisis struck.