Michael Anthony Halliday (born January 22, 2003) is an American professional soccer player who plays as a defender.
Halliday was born in Orlando, Florida, but grew up in Apopka. In 2016, Halliday joined Orlando City Academy's U-13 side and progressed through the academy.
Ahead of the 2020 season on March 3, Halliday was named to the Orlando City B roster. On August 1, Halliday made his senior debut in a 2âÂÂ0 loss to Tormenta FC.
In 2021, Orlando City B went into hiatus after withdrawing from USL League One due to the possibility of an MLS reserve league launching in 2021, but that was delayed until 2022 with the launch of MLS Next Pro.
In the inaugural MLS Next Pro season, Halliday only made five appearances with the reserve team as he spent most of his time with the senior team.
On July 15, 2020, Halliday was signed to the senior team without making an appearance for the reserve team due to the COVID-19 pandemic delaying the start of the 2020 USL League One season until July 18. Halliday's signing made him the team's ninth homegrown signing and at 17 years, 5 months, and 23 days of age, the youngest player to sign with the first team since Tommy Redding in 2014. In his first season with the Lions, he did not make an appearance for the senior team.
On May 29, 2021, Halliday made his debut for the club when he started in a 2âÂÂ1 loss against the New York Red Bulls.
In the 2022 season, Halliday spent much of his time on the bench, but on October 16, Halliday made his MLS Cup playoffs debut when he came on as a 87th-minute substitute for Ruan in a 2âÂÂ0 loss to CF Montréal.
In 2023, Halliday made the most appearances he had in his senior career, but suffered an injury in June which saw him lose his spot to new signing Dagur Dan ÃÂórhallsson. In the following season, Halliday's playing time declined and he only made one start in a 3âÂÂ1 win over Cavalry FC in the 2024 CONCACAF Champions Cup on February 27.
On February 18, 2025, Halliday was acquired by fellow Major League Soccer club Houston Dynamo on a one-year contract with a club option for 2026 and 2027 in exchange for a first round draft pick in the 2026 MLS SuperDraft. On March 20, Halliday made his unofficial debut in a 2âÂÂ1 friendly victory over the El Salvador national team. On April 6, 2025, Halliday made an appearance with Houston Dynamo 2, playing the full match of a 1âÂÂ0 win over Los Angeles FC 2. At the end of the season, Halliday failed to make a competitive appearance with the Dynamo, and the team announced that they would allow his contract to expire at the end of the season.
Orlando City
United States U20