LONDON (AFP) Arsene Wenger admits he is ready to sacrifice Arsenals FA Cup hopes to keep their Premier League title challenge on track. Wengers side make the short trip across London to face West Ham in the third round of the Cup on Sunday in a derby clash that would usually be treated with the utmost respect by Arsenals manager. Wenger has won the Cup four times during his 13 years in north London and the clubs last major silverware came in the competition back in 2005. Yet the French coach has no intention of letting fond memories of the tournament distract him from keeping his players fresh for Wednesdays crucial home league game against Bolton. Arsenal are firmly back in the title race after their 4-1 win at Portsmouth in midweek and a victory over the managerless Trotters would close the gap on leaders Chelsea to just one point. With that in mind, Wenger is prioritising the league and plans to send out an under-strength side at Upton Park - even if this means his team being eliminated at the first hurdle. Cesc Fabregas, Robin van Persie, Theo Walcott and Denilson are all sidelined through injury, but Wenger will also rest several other players as the likes of Mikael Silvestre and Lukasz Fabianski get rare outings. I will have to rest some players, that is for sure, Wenger said. We want to win, but we want to protect our home games against Bolton and Everton as well, to keep the momentum going. The Premier League is always more important than the FA Cup. The Premier League is so hard that you want to take care of your position. At the moment we have to keep our spirit and our attitude, then we have a chance. Although Wenger will shuffle his starting line-up, he insists he has enough respect for the Cup not to send out the kind of youthful team that he regularly employs in the League Cup. We have so many players that we have a hard time finding them a chance to play. Like Wenger, West Ham manager Gianfranco Zola is more concerned by his sides league position than aiming for success in the Cup and, with a long battle against relegation looming, the Italian could also rest key players. Only goal difference is keeping the Hammers out of the relegation zone after Mondays defeat at Tottenham and Zola knows his team need to show more of the battling qualities that helped them fight back from two goals down to draw with Arsenal earlier this season. Zola could hand young striker Frank Nouble a first start in place of suspended Mexican striker Guillermo Franco, while he is unlikely to risk Scott Parker if the midfielder - who is strongly-rumoured to be moving on in the January transfer window - is still struggling with the hamstring problem that forced him off against Tottenham. Hammers midfielder Valon Behrami knows playing Arsenal at such a difficult time for his club is hardly ideal, but the Swiss star hopes a good result can spark a more profitable second half of the season. We are struggling in the Premier League. We have a lot of injuries and at this moment in time it is not a great game for us, he said. Its very nice to play in the FA Cup, because its a different atmosphere, but its a tough game. It is not a very kind draw.