Getty Bucs UDFA linebacker Nick Jackson made a historic first impression during Tampa Bay's 29-7 win over the Tennessee Titans on Saturday. The preseason is a time for first impressions and second chances. Some veterans are clinging to roster spots, while rookies and undrafted free agents (UDFAs) are looking to prove that they deserve to make the 53-man roster. Bucs UDFA linebacker Nick Jackson made quite the first impression during Tampa Bay’s 29-7 win over the Tennessee Titans on Saturday.