Krul sidelined for up to five weeks
Tim Krul could be out for up to five weeks with an ankle injury he picked up in Newcastle's Europa League last 32 second leg 1-0 win at Metalist Kharkiv.
Krul, 24, visited a specialist earlier in the week after leaving the game on crutches last Thursday, following a challenge from striker Jonathan Cristaldo.
"His ankle is still a little bit swollen. We think (he will be out for a) maximum four weeks, five weeks, but we are hoping for less than that," Newcastle manager Alan Pardew said.
Third-choice goalkeeper Rob Elliot was handed a Premier League debut in Sunday's 4-2 victory over Southampton and will continue in goal at Swansea on Saturday, due to 37-year-old Steve Harper's continued back problem.
Krul has kept five clean sheets in 26 games for the Magpies in all competitions this season.