Graham Potter has kept us all guessing on how Chelsea will line-up in every game since taking charge in September.
By a current count, Chelsea have used at least eight different formations in the 11 games of the Potter era so far. The flexibility that became a trademark at The Amex has not taken long to embed itself at Stamford Bridge, even covering the club is not enough to assume what the next game will bring.
Sunday afternoon's clash with Arsenal provides the sternest test so far for Potter based on the league table. The Gunners have won 10 of their opening 12 games and currently sit 10 points clear of the Blues in top spot.
