 Hasselbaink was signed by Boavista for a € 300 @,@ 000 fee in summer 1996 . The 1996 – 97 season was chaotic for the club , as the chairman sacked two managers , Zoran Filipović and João Resende Alves , before ending the campaign with Rui Casaca . As a result , the " Panthers " only managed a seventh @-@ place finish , but ended the campaign on a high note by winning the Taça de Portugal . Hasselbaink had a good season individually , finishing as the league 's second highest scorer behind Porto 's Mário Jardel . He scored his first professional hat @-@ trick at the club , in a 3 – 1 victory over Marítimo at the Estádio do Bessa ; he later scored a hat @-@ trick in a 7 – 0 win over Gil Vicente , as did teammate Nuno Gomes . Though head coach Casaca left Hasselbaink on the bench due to his arranged transfer to Leeds , Hasselbaink entered the final of the Taça de Portugal as a late substitute for Erwin Sánchez as Boavista held on to a 3 – 1 win over Benfica . 
