He played college football at FIU and was selected by the Tennessee Titans in the third round of the 2017 NFL draft.

[6] Smith was invited to play in the 2017 Senior Bowl, but was overshadowed by other tight ends who were considered first and second round picks.

[7] Smith was one of 19 tight ends who received an invitation to attend the NFL Scouting Combine in Indianapolis, Indiana.

[9] On March 29, 2017, Smith opted to participate at FIU's pro day, along with Dieugot Joseph and ten other teammates.

[10] Throughout the pre-draft process, Smith had private workouts and visits with Atlanta Falcons, Tennessee Titans, New Orleans Saints, Miami Dolphins, and Minnesota Vikings.

[11] At the conclusion of the pre-draft process, Smith was projected to be a fourth or fifth round pick by NFL draft experts and analysts.

[17] The Titans selected Smith to fill a void in their two tight end sets after Anthony Fasano departed in free agency.

[20] Smith made his NFL debut starting in the Titans' season-opening 26–16 loss to the Oakland Raiders.

[21] In the next game, he recorded two receptions for 30 yards and scored his first NFL touchdown on a 32-yard screen pass from Marcus Mariota during the fourth quarter of a 37–16 road victory over the Jacksonville Jaguars.

[23] The Titans finished second in the AFC South with a 9–7 record and made the playoffs as a Wild Card team.

[26] In the Divisional Round against the New England Patriots Smith recorded a four-yard reception before suffering a torn MCL in the 35–14 loss.

[27] Smith was named the Titans' top tight end on the depth chart after Walker suffered a dislocated ankle during the season-opening 27–20 road loss to the Dolphins.

[28] Smith initially struggled filling Delanie Walker's shoes, but he caught his first touchdown of the season on a shovel pass from Mariota during Week 9 against the Dallas Cowboys in a 28–14 road victory.

[37] In the next game against the Tampa Bay Buccaneers, he caught six passes for 78 yards and his first touchdown of the season from Ryan Tannehill.

[39] Smith continued his momentum the next game against the Saints, catching three passes for 63 yards and a touchdown as the Titans lost 38–28.

[43][44] In Week 5 against the Bills on Tuesday Night Football, Smith recorded five catches for 40 yards and two receiving touchdowns during the 42–16 win.

Smith has said, “[Faith is] the foundation of everything I do, and I am so thankful for the way I was raised because I lean on the things I learned as a kid today as a grown man.

The argument took place in their campus dorm room, where Gaspar used a kitchen pot and poured boiling hot water onto Smith.