Newcastle boss Eddie Howe says there'll be no underestimating Southampton on Sunday.
Newcastle have scored 10 goals in the last two games.
Howe said, "It's a difficult game. I think they are fighting. I watched the Arsenal game very recently - they were very good against the league leaders, they scored three goals and looked a real threat in transitions and set plays.
"We've played Southampton three times I think this season so we know their qualities. They're a good team. It's going to be difficult.
"Winning is everything. It's what you're paid to do, but it's what you plan to do. And I'm so proud of everyone connected with the club this year with what we've given - players, staff, board, everyone - and we feel really united at the moment.
"Things are going well and we're not taking that for granted because we know quickly it can change, but we're enjoying the feeling we're having and long may that continue."