We are now ten matchdays into the grueling thirty-eight matchday Premier League season. The Manchester Derby, North East derby, Chelsea’s continuing championship collapse into the bottom of the table, and more informational stats will be covered as the 2015-16 Premier League season’s plot thickens. This is Five Interesting Facts from Premier League Matchday 10.

Manchester Derby Ends Stalemate Sunday’s key Matchday 10 game was the latest chapter of the Manchester Derby, as United played host to City. After ninety minutes of attacking action in Old Trafford, the teams drew at 0-0. This is the third time in the Premier League era the teams would play to a scoreless match, and the first scoreless Manchester Derby at Old Trafford in over ten years.

Chelsea’s Descent Continues; West Ham Strikes Again

The Blues’ paltry defense of the Premier League crown continued in Matchday 10. Chelsea fell 2-1 to now third-place West Ham United on Saturday. This is the first time in six matches The Hammers were able to beat Chelsea. Also, this victory continues West Ham’s unbeaten record against other London-based sides (also beat Arsenal and Crystal Palace), in addition to beating Manchester City and Liverpool.

Sunderland Awakens Sunderland found a perfect time to get a first win on their season, in a fixture that seems to assure them victory currently. Sunderland pounced on Newcastle 3-0 on Matchday 10 in another featured derby match of the round. The Wear-Tyne derby, or North East derby with Newcastle United, has been played since 1883. The Black Cats have had the upper hand on the Toon for the last six consecutive Premier League meetings now. Sunderland haven’t lost to Newcastle United in the last eight meetings, since 2011.

Leicester Hit The Century Mark

Leicester City won their one hundredth Premier League match on Matchday 10. Jamie Vardy extended his league-leading goalscoring tally to ten, as the Foxes defeated Crystal Palace 1-0 to stay within the top five in the league table. Vardy has scored in his last seven consecutive Premier League appearances. The nineteen points from the Foxes after ten rounds is the best start from a Leicester City side in Premier League history.

Fortune Favors The Swans

Swansea City, Wales’ only club in England’s top flight, continued their run of good form against one of England’s traditional powers now sitting in the cellar of the Premier League. The Swans recorded their fourth consecutive win over Aston Villa in Premier League play with a 2-1 road win that cost Villa manager Tim Sherwood his job. In the nine Premier League matches between the two, Villa have only won once against Swansea (drew three times), in September 2012.