Alexander Isak has run out of chances to prove he should be Liverpool’s first-choice striker.That’s the view of former Premier League star Darren Bent, who has been keeping a close eye on the Reds’ attacking options.Alexander Isak is showing no signs of recapturing his previous formGettyIsak, who completed a British-record £125m move from Newcastle on deadline day, is yet to replicate the form he showed on Tyneside.The Swede has netted just twice in 15 appearances for Liverpool and has struggled to adapt to his new surroundings.The same cannot be said for fellow summer recruit Hugo Ekitike, who has netted ten goals in 23 games and has seamlessly fit into Slot’s title-winning side.Ekitike was preferred to Isak in Saturday’s 2-0 over Brighton and the 3-3 draw at Leeds a week earlier. The Frenchman netted four times across the two games before being replaced late on by Isak in both matchesThe £79m man is in a rich vein of form and displaying a level of confidence similar to that of Isak last season.Not only is he showing Isak how it’s done, but the 23-year-old is also upstaging Mohamed Salah.Despite his excellent start to life at Anfield, Ekitike, who can comfortably play out wide, has at times remained behind Isak in the pecking order.Changing of the guard?But patience could soon wear thin with the misfiring Swede and Bent believes the Liverpool boss should reshuffle the order to find a winning formula.“I know there’s been a lot made of Isak and you’ve got Ekitike there and he’s (Slot) trying to make changes and give Isak the opportunity,” Bent told talkSPORT.Isak is yet to win over the Anfield faithful since his arrivalGettyGettyMeanwhile, Hugo Ekitike has had a blistering start to the season[/caption]“It almost looks like the Liverpool move has been too big for him,” Bent said of Isak’s blockbuster move to Merseyside.Head-to-headThe former Tottenham and Aston Villa striker even suggested Isak has been approaching games with desperation while engaging in a personal duel with Ekitike.“I know he hasn’t had a full pre-season but watching his performance compared to Ekitike, Ekitike looks like he’s a centre-forward that’s gone to Liverpool and embraced it,” Bent added.“He’s said this club’s massive and I am not giving up this shirt.“Isak’s gone in there with a little bit of desperation. He’s so desperate to prove he’s better than Ekitike.“If I’m Arne Slot, I’m saying ‘you know Isak I’ve given you enough opportunities now, he’s (Ekitike) number one. When he goes off form, then you’ll get an opportunity.’GettyArne Slot has started the Frenchman ahead of Isak in Liverpool’s last two league outings[/caption]Darren Bent has urged Slot to put his faith in Ekitike“I’m starting Ekitike from now on.”Despite Bent’s claim, Slot appears to be satisfied with both of his star strikers following their summer moves to Anfield.“I think I can see the players we have brought in this season have progressed,” Slot told Sky Sports after Saturday’s win.“They are getting stronger and stronger and fitter and fitter. I can see them getting stronger in the duels they play. “Hugo is an example of that, but others are examples of that too.”