"Tactically the players were aware of what had to happen to beat Arsenal," said Allardyce.
"Arsenal have been weak defensively - they leave the centre-backs exposed."
Crystal Palace manager Sam Allardyce, speaking to Sky Sports: "Tactically the players were aware of how to beat Arsenal. The first thing was to defend and frustrate them, keep them playing sideways, then use the space behind the full-backs. Arsenal have been weak defensively, they leave the centre-backs exposed.
"We won a lot of possession off them and created lots of chances. Cabaye's goal, what a finish - and that was down to us pressing them. It wasn't a shock for me because we played Chelsea and won that game. The result might be a shock, but we did that again and did it better.
"We all know Arsenal are going through their worst spell for years, but the only way to take advantage is by playing well. Everything worked perfectly for us today."
Eden Hazard, Zlatan Ibrahimovic, Harry Kane, N'Golo Kante, Romelu Lukaku and Alexis Sanchez are the six nominees
The shortlists for the PFA Players' Player of the Year and Young Player of the Year were revealed on Thursday.
It generated plenty of debate - particularly around Tottenham's Dele Alli missing out on the senior nomination.
Here's your chance to add the debate by choosing your Premier League team of the year and sharing it.
Pick your Team of the Year
Pick your Team of the Year from our list and share with your friends.
My picks:
Player of the year: Lukaku
Team of the year: Chelsea
Duhh hapo kazi, ila sio kocha mbaya, kocha mzuri sana, ila kazi haiendi vizuri, makazini kwetu inatokea, kila kocha imeshawahi kumtokea, hakuna cha ajabu, ni mpira tu, labda kaubishi na kutokukubali mabadiliko ya jinsi mpira unavyochezwa, tusubiri tuone..