Leicester City's incredible run at the summit of the Premier League continued on Saturday. The Foxes defeated Swansea City in south Wales, running out 3-0 winners, with a hat-trick from Riyad Mahrez.There were no goals for the prolific Jamie Vardy, but the striker continues to lead the English league scoring charts in 2015-16.Defeats for Manchester City, Chelsea and Liverpool surprised a collection of big clubs in the Premier League this week, with all three teams losing to inferior opposition.City fell 2-0 away at Stoke to relinquish their lead at the top of the standings, and Chelsea's misery continued at Stamford Bridge after a shock 1-0 defeat to Bournemouth.Liverpool's great form collapsed against Newcastle on Sunday, as they lost 2-0 on the road.Here are the results for Week 15, including the latest standings and top scorer chart:Mahrez in the Shop Window After Hat-TrickLeicester City's meteoric rise to the top of the Premier League has coincided with Jamie Vardy's elevation from lower-league striker to England's finest.However,Riyad Mahrez's form has not gone unnoticed, and the brilliant attacking midfielder has been one of the standout performers in Europe this term.The 24-year-old Algerian fired the Foxes clear above Arsenal and both Manchester clubs in the league with a clinical hat-trick against Swansea City, taking the player to double figures for the campaign.Mahrez has 10 goals and six assists in 14 Premier League appearances this season, according toWhoScored.com, and he has emerged as a surprise January target for Manchester United, perTom Sheenof theIndependent.Sky Sports punditPaul Mersonsaid he thinks the vultures will be circling above the King Power Stadium in the weeks to come, and the former Gunner believes the top two scorers in the league, as well as DannyDrinkwater, will be vulnerable to approaches:Mahrez won't be having a little career if he plays like that every week. The problem will be January because this lad's going to be wanted.Vardy's going to be wanted. Drinkwater is a very good player. It wouldn't surprise me if somebody came and bought him. There aren't too many better centre midfield players at the moment than him.Vardy's goalscoring run finally ended on Saturday as Leicester overpowered the Swans, but he was influential in Mahrez's goals and could have had a hat-trick himself.If both players remain at Leicester in January, the side have an unprecedented shot at finishing in the European qualification places at the end of the season, beating the odds for a team associated with relegation struggles.However, the east Midlands ship could sink as quickly as it has risen if the attackers find pastures new, leaving manager Claudio Rainieri with an impossible void to fill.Wijnaldum Continues To Find The NetNewcastle haven't looked like their previous incarnationsin the days ofexcitementand title challengesthis season,but one bright spark has been Georginio Wijnaldum.The Dutch attacker has not been able to lift the Geordies on a weekly basis, but his cameos have been the highlight of the season for manager Steve McClaren.Wijnaldum was at it again on Sunday as Newcastle shocked Liverpool 2-0 at St. James' Park.The Reds were far from their best and struggled to create, but the work ofWijnaldum earned him a goal and an assist, according toWhoScored.The Dutchman has the knack of finding the space traditionally occupied by a No. 10, but he has the finish and tenacity of a No. 9 in front of goal.The strike takesWijnaldum to joint-seventh in the scoring charts, level with Manchester City's Sergio Aguero on seven goals.The win lifts Newcastle back above Sunderland in therelegationzone and much closer to the pack just abovethe north-east pair.Wijnaldum has proved he is one of the most exciting new players to arrive in England this year, after his transfer from PSV Eindhoven, and a strong Christmas period could see him dining in the same company as Mahrez and Vardy:wanted by the biggest clubs in Europe during the winter transfer window.All three players could operate for title-chasing clubs, but their current teams rely on them greatly, meaning huge transfer fees would be of little use in the short term.Read more World Football news on BleacherReport.com Click here to read full news..