Three people in the Premier League spotlight this weekend

Just a month remains in the 2014-15 Premier League season, with everything still to be decided at both the top and bottom of the table.

Already there is talk of managerial changes, summer signings and next season's title race, but there is still plenty to play for this season, with the top two going head to head this weekend.

Sports Mole picks out three people who will be in the spotlight this weekend.

Arsenal are Chelsea's closest rivals for the Premier League title, and host the current league leaders on Sunday looking to cut the 10-point gap to Jose Mourinho's side in a bid to be crowned champions for the first time since 2004.

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If the Gunners are to make a late run for the title, they will need Chilean international Alexis Sanchez, who netted a brace in their 2-1 win over Reading in last weekend's FA Cup semi-final, to be at his best.

The midfielder is the club's joint-top scorer in the league so far this season with 14 goals, the same number as striker Olivier Giroud, and 22 in all competitions since his arrival at the Emirates in the summer, including three in his last three outings.

Sanchez's contributions in his first season at Arsenal have not been limited to scoring goals though, as the 26-year-old has eight assists from his 28 appearances in the league, so Arsene Wenger will surely be looking to him to create something against a Chelsea side that have not lost since New Year's Day this weekend.

The West Ham United manager looks increasingly likely to be heading for the exits at Upton Park at the end of the season, with more names being linked with his job by the day.

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The 60-year-old was charged with making his team play more attacking football by the club's owners ahead of this season, despite the team finishing 13th, comfortably clear of the relegation zone, during the 2013-14 campaign. The Hammers werepushing for a European spot early in the season, but a slip in form in recent months has seen them drop down the standings.

West Ham sit 10th ahead of Saturday's match against Queens Park Rangers, but the manager has had to contend with the likes of Garry Monk, Slaven Bilic and David Moyes all being linked with his job over the last couple of weeks.

With his side facing a team currently sitting in the relegation zone, the pressure will be on Allardyce to secure a victory this weekend, boosting his side's chances of finishing in the top half of the table this season and the likelihood that he will remain at West Ham next year.

Liverpool will be looking to put their FA Cup exit at the hands of Aston Villa behind them when they return to action in the Premier League this weekend with a match against West Bromwich Albion, with the build-up to the match dominated by news of Jordan Henderson's new contract.

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The club's current vice-captain penned a new long-term deal with Brendan Rodgers's side yesterday, seemingly confirming that he will take over from Steven Gerrard as captain when he moves on at the end of the season.

Henderson has been an ever-present for the Reds this season, making 48 appearances in all competitions for the team, scoring seven goals and regularly wearing the captain's armband as Gerrard has struggled with his fitness.

Although Gerrard is available for this match, all eyes are likely to be on Henderson as the potential future leader of the club, with Liverpool fans hoping that the midfielder will help the side put a recent run of poor results behind them.