At the point in which Liverpool's double substitution of Takumi Minamino and Naby Keïta was made on Saturday, it was easy to question yourself on who was left on the pitch. As I was making notes the attention slipped from the screen and suddenly I was convinced that Gini Wijnaldum and Mohamed Salah had made way.

Understandable, perhaps, given who had entered the fray. Minamino off the right and Keïta in a like-for-like number eight switch made sense on the face of things, but as the camera switched back to the play and Salah and Wijnaldum both become visible on the pitch, it was clear Jürgen Klopp had experimented with his personnel in a way not seen before.

Minamino has usually been reserved for occasions when at least one of the front three are absent. In this setup he played left of an altered 4-2-3-1 which had Salah central, and there was a marked difference in Liverpool's attack. The Reds were no longer insistent on working the ball wide to Andy Robertson in final third crossing areas.

Keita continued to play direct and centrally after his introduction.

Instead, they were much more of a bulldozer, piling their way through Arsenal's rearguard through more central areas, which in turn led to more loose ball situations such as the one which led to Liverpool's equaliser from the Japanese forward. The presence of Fabinho and Joe Gomez closing off Liverpool's right-flank the opposite way also offered more incentive to gamble going forward.

Yet the truest and perhaps most thankful recipient was Keïta — who entered the pitch and completed 27 out of 31 passes, with two out of two successful dribble and long ball attempts and 57 percent of duels won. While it's true the midfielder can thrive with more space and a slower game due to tiredness around him, it was notable just how many players were constantly ahead of him and enabling him to dictate play.

At times, Keïta had four attackers plus two full backs advanced against Arsenal's low-block. Interestingly, he wasn't afraid to play central and direct and pick up those second ball situations as referenced above. The movement will also be assisted in future by the likes of Jordan Henderson, Alex Oxlade-Chamberlain and Trent Alexander-Arnold. Klopp's team will face plenty more deep lying defences this season, and we may have just seen a new option for the times when it isn't exactly going to plan. If so, Minamino and Keïta are two players who look determined to influence things for the better.