Brentford have completed Deadline Day deals for Rico Henry from Walsall and Sullay Kaikai from Crystal Palace.
The Bees have broken their club transfer record for a teenager by signing 19-year-old Henry from Walsall for a £1.5m which could eventually rise to £5m and have recruited Palace winger Kaikai on a loan deal for the remainder of the season.
Henry, who plays predominantly at left-back, leaves Walsall having made 58 appearances for the first team, scoring three goals during that time, and is reunited with former Saddlers boss Dean Smith.
Smith said: "Rico is a player I worked with at Walsall and threw him into the first team at 16 in pre-season friendlies and he more than held his own in those games, he had no fear, and was playing in League One shortly afterwards.
"He's a talented player, fearless, and likes to bring the ball to opponents.
"He will provide competition down the left side along with Callum Elder and Tom Field.
"I'm surprised and delighted we've got Rico to the football club as I thought a Premier League side would have signed him by now. His development hasn't stopped and there's a lot more to come from him."
Kaikai, 21, has previously been on loan with Crawley, Cambridge and Stevenage, and on his acquisition Smith said: "I am really pleased to have Sullay join us for the season, I am thankful to Alan Pardew and Crystal Palace for making this happen.
"Sullay is a player I feel will enhance our squad, he brings pace, energy and goals and is a player we have watched several times at Crystal Palace and Shrewsbury last season where he excelled. I believe we can help him on his development pathway and he will certainly help us fulfill our ambitions."