[4] In January 2015, he joined Brighton & Hove Albion where he spent five and a half years – including a loan spell at Charlton Athletic – helping The Seagulls to Premier League promotion for the first time in the club's history.

[7][8] Kayal started his career as a striker in the various Youth teams of Maccabi Haifa and scored many goals before taking on the role of a midfielder.

After that he became an integral part of the team and enjoyed success in subsequent seasons winning the Premier League and Toto Cup.

[9] During the 2007 Torneo di Viareggio youth tournament in Italy, Kayal was praised by the Italian press for a Man of the match performance against their counterparts from Fiorentina.

[11] In the 2009–10 season, Maccabi Haifa lost the Premier League championship on the last matchday, when Hapoel Tel Aviv scored in the 92nd minute to beat Beitar Jerusalem.

[16] Kayal made his debut for Celtic against FC Utrecht on 19 August 2010 and showed his full potential by getting off to the best possible start, setting up the opening goal of the game for Efraín Juárez and winning the Man of the Match award.

[19][20] He made his return as a substitute on 26 December against St Johnstone,[21] and was restored to the starting line-up in a 2–0 win over Rangers at Ibrox on 2 January 2011.

[22] His performances won him the SPL Player of the Month award for January 2011,[4] and the praise of Celtic manager Neil Lennon.

[28] On 4 May, Kayal had to be taken off in the second half of an SPL match against Inverness Caledonian Thistle because of suspected concussion[29] after a collision with Ross Tokely.

[33] Kayal suffered ankle ligament damage against Rangers on 28 December 2011 after a tackle by Lee McCulloch and was stretchered off with 13 minutes to play.

[42] Brighton narrowly missed out on automatic promotion where Kayal played 43 games and scoring 2 goals in the league in the 2015-16 season.

[43] Brighton were to face another season in the Championship after losing to Sheffield Wednesday on aggregate in the playoffs where Kayal played in both matches for the Albion.

[58] On 17 November 2020, Kayal returned to Israel and signed a three-year contract with Bnei Sakhnin of the Israeli Premier League, who had just been promoted.

[6] He made his debut eight days later, starting in a 4–0 away loss against Hapoel Hadera in which he was replaced in the 46th minute, in what was his first appearance in the Israeli top flight in over 11 years.

[66] Kayal is a tenacious, hard working midfielder, known for high stamina level, aggressive tackling and combative edge, he also has great passing ability and quick feet.