Farense vs. Nacional (Sunday, 3.30pm)
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Two sides who could do well with a win square off in round 21 of the Portuguese Primeira Liga as SC Farense play host to Nacional at the Estadio de Sao Luis on Sunday.
Both sides are currently separated by just five points at the wrong end of the league standings, with the Leoes de Faro languishing in the relegation zone, three points away from safety.
We say: SC Farense 2-1 Nacional
Farense and Nacional find themselves scrambling for life at the bottom end of the table and we expect both sides to go all out in search of a morale-boosting result this weekend. Margarido's side have been abysmal on their travels this season and we fancy Farense to come away with the desired result, albeit by the odd goal.
> Primeira Liga preview: Farense vs Nacional
Estoril vs. Boavista (Sunday, 3.30pm)
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Having won each of their four matches since the turn of the year, a rejuvenated Estoril Praia dire return to action in the Primeira Liga when they play host to Boavista on Sunday.
Os Axadrezados, in stark contrast, head into the weekend on a run of five back-to-back defeats and will journey to the Estadio Antonio Coimbra da Mota looking to stop the rot as they try to salvage their season.
We say: Estoril Praia 2-0 Boavista
Estoril Praia have turned a corner since the start of the year and will be licking their lips as they take on a floundering Boavista side who have failed to taste victory since the first week of November.
We predict a one-sided affair at the Estadio Antonio Coimbra da Mota this weekend with the Canarinhos claiming all three points to heap more misery on the struggling visitors.
> Primeira Liga preview: Estoril vs Boavista
Braga vs. Gil Vicente (Sunday, 6.00pm)
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Dreaming of a place in the Champions League, Braga are set to host Gil Vicente at Estadio Municipal de Braga this Sunday in the Primeira Liga.
The Arsenalistas have been in particularly strong form recently in the Portuguese top flight, while the Gilistas have lost back-to-back games and will be looking to get back on track this weekend.
We say: Braga 2-1 Gil Vicente
Braga have a mixed record at home while Gil Vicente have a poor record on the road, so expect a close game regardless of the result.
That being said, the hosts have been in strong form more generally and their momentum - as well as the chance to put pressure on Porto - could see them take an important three points this weekend.
> Primeira Liga preview: Braga vs Gil Vicente
Casa Pia vs. Estrela Amadora (Sunday, 8.30pm)
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Aiming to respond to last week's defeat by Santa Clara, Casa Pia welcome relegation-threatened Estrela Amadora to Estadio Municipal de Rio Maior in Sunday's all-Lisbon Primeira Liga action.
Casapianos, defeated after a seven-match unbeaten sequence (five wins), have not lost a home game since August and aim to extend that run in gameweek 21's clash with the division's third-bottom outfit and worst travellers.
We say: Casa Pia 1-0 Estrela Amadora
During their eight-match undefeated run on home soil, Casa Pia have either netted three goals; 3-1 wins over Moreirense, Arouca and Benfica; or scored one, as highlighted in 1-1 draws against Vitoria Guimaraes, Farense, AVS and Famalicao, while they secured a 1-0 success over Nacional.
Given the precedent and Estrela's miserable productivity on their travels, the hosts should back themselves for a slender victory on Sunday.