Ulster has has signed London Welsh players Peter Browne and Paul Rowley.
Secondrow Browne, 27, is Irish-qualified, while 26-year-old scrumhalf Rowley, who was born in Limerick, began his playing career at the Munster academy, representing the province’s Under-19 and Under-20 sides.
Ulster team manager Bryn Cunningham said: "Pete's pedigree and age make him the perfect person to come into an environment that will encourage him to achieve his potential and result in him pushing hard for a starting berth as a six or secondrow.
“Paul possesses an all-round game, with control being at the forefront of his skill-set.
"He will aim to put pressure on Paul Marshall and provide a slightly different option with his left-footed kicking from behind the pack."