Liverpool manager Jurgen Klopp believes Arsenal have become genuine title contenders following the recruitment of "amazing" new players.
The only two teams boasting 100 per cent Premier League records this season square off in a tantalising encounter at Anfield on Saturday.
Gunners boss Unai Emery could mark the occasion with a first start for club-record signing Nicolas Pepe, having handed home debuts to David Luiz and the impressive Dani Ceballos in last weekend's 2-1 win over Burnley.
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Kieran Tierney and young forward Gabriel Martinelli have also joined the north London side, leaving Klopp with "zero doubt" that Arsenal are stronger than last season.