Colombia midfielder Alzate and Republic of Ireland forward Connolly broke into the first team this season under Albion boss Graham Potter. The duo, who each made their international debuts this term, are now tied to the Seagulls until the summer of 2024. Alzate, who was signed from Leyton Orient in 2017, told the club's website: "The manager has been integral for me. "He gave me the opportunity to make my debut and to kick on from there. "When I made my debut I had to prove myself, but he has given me the opportunity to make that impression and I think I have taken it with both hands." Alzate, 21, made 19 Premier League appearances as Albion finished 15th, although his season was curtailed by groin surgery. Connolly scored three times in 24 top-flight appearances, claiming Sunday's winner at Burnley having netted twice in a 3-0 win over Tottenham in October. "It's fantastic the club have given me this kind of security because it means I can push on now for the next four years," said the 20 year old. "It will help me relax and enjoy my football even more. "This season has been unbelievable at times and obviously the Tottenham game when I scored twice was a big moment for me."